diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
index 919d98ad..92ca4668 100644
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@@ -4,10 +4,10 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
-        <DropdownSelection timestamp="2024-06-28T11:42:38.581666500Z">
+        <DropdownSelection timestamp="2024-07-03T06:41:37.187789300Z">
           <Target type="DEFAULT_BOOT">
             <handle>
-              <DeviceId pluginId="PhysicalDevice" identifier="serial=21114523025303" />
+              <DeviceId pluginId="LocalEmulator" identifier="path=C:\Users\sergiodt\.android\avd\Pixel_7a_API_30.avd" />
             </handle>
           </Target>
         </DropdownSelection>
diff --git a/app/src/main/java/es/verdnatura/domain/SalixService.kt b/app/src/main/java/es/verdnatura/domain/SalixService.kt
index 05c7f92b..c77dac17 100644
--- a/app/src/main/java/es/verdnatura/domain/SalixService.kt
+++ b/app/src/main/java/es/verdnatura/domain/SalixService.kt
@@ -33,17 +33,18 @@ import es.verdnatura.presentation.view.feature.historicoshelvinglog.model.Shelvi
 import es.verdnatura.presentation.view.feature.historicovehiculo.model.ItemHistoricoVehiculo
 import es.verdnatura.presentation.view.feature.inventario.model.ItemInventaryVO
 import es.verdnatura.presentation.view.feature.inventario.model.ItemInventoryParking
+import es.verdnatura.presentation.view.feature.login.model.AccessConfigSalix
 import es.verdnatura.presentation.view.feature.login.model.DataUserSalix
 import es.verdnatura.presentation.view.feature.login.model.LoginApp
 import es.verdnatura.presentation.view.feature.login.model.LoginAppData
 import es.verdnatura.presentation.view.feature.login.model.LoginDevice
 import es.verdnatura.presentation.view.feature.login.model.LoginSalixVO
 import es.verdnatura.presentation.view.feature.login.model.NameWorker
+import es.verdnatura.presentation.view.feature.login.model.OperatorAdd
 import es.verdnatura.presentation.view.feature.login.model.OperatorSalix
 import es.verdnatura.presentation.view.feature.login.model.RenewToken
 import es.verdnatura.presentation.view.feature.login.model.SalixGrupo
 import es.verdnatura.presentation.view.feature.login.model.VersionApp
-import es.verdnatura.presentation.view.feature.login.model.accessConfigSalix
 import es.verdnatura.presentation.view.feature.main.model.WorkerActionSalix
 import es.verdnatura.presentation.view.feature.packaging.model.EntrySalix
 import es.verdnatura.presentation.view.feature.packaging.model.ItemSupplier
@@ -880,7 +881,7 @@ interface SalixService {
     //DE MOMENTO NO FUNCIONA, SE QUERÍA AÑADIR POR INSERTIGNORE
     @POST("Operators")
     fun operatorAdd(
-        @Body params: Any
+        @Body params: OperatorAdd
     ): Call<Any>
 
     @POST("DeviceLogs")
@@ -947,11 +948,6 @@ interface SalixService {
         @Query("itemFk") itemFk: Int,
     ): Call<Any>
 
-    @GET("ItemBarCodes/{barCodeValue}/toItem")
-    fun barcodes_toitem(
-        @Path("barCodeValue") barCodeValue: String
-    ): Call<String?>
-
     @GET("ItemBarCodes/{barCodeValue}/toItem")
     fun barcodesToItem(
         @Path("barCodeValue") barCodeValue: String
@@ -1061,7 +1057,7 @@ interface SalixService {
 
     @GET("AccessTokenConfigs")
     fun getAccessTokenConfigs(
-    ): Call<List<accessConfigSalix>>
+    ): Call<List<AccessConfigSalix>>
 
     @POST("vnusers/renewToken")
     fun renewToken(
diff --git a/app/src/main/java/es/verdnatura/domain/userCases/UserCases.kt b/app/src/main/java/es/verdnatura/domain/userCases/UserCases.kt
new file mode 100644
index 00000000..fa8cafe9
--- /dev/null
+++ b/app/src/main/java/es/verdnatura/domain/userCases/UserCases.kt
@@ -0,0 +1,15 @@
+package es.verdnatura.domain.userCases
+
+import android.content.Context
+import es.verdnatura.domain.RestClient
+import es.verdnatura.domain.SalixService
+import retrofit2.Call
+
+class UserCases(context: Context) : RestClient(context) {
+
+    fun itemToBarCode(barcode: String, salix: SalixService) : Call<Int?> {
+
+        return salix.barcodesToItem(barcode)
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/articulo/fragment/ItemCardViewModel.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/articulo/fragment/ItemCardViewModel.kt
index 48fe519a..6df4cbc4 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/articulo/fragment/ItemCardViewModel.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/articulo/fragment/ItemCardViewModel.kt
@@ -6,6 +6,7 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.map
 import es.verdnatura.domain.SalixCallback
 import es.verdnatura.domain.formatWithQuotes
+import es.verdnatura.domain.userCases.UserCases
 import es.verdnatura.presentation.base.BaseViewModel
 import es.verdnatura.presentation.common.Event
 import es.verdnatura.presentation.common.ItemBarCodeSalix
@@ -24,6 +25,8 @@ import java.io.File
 
 class ItemCardViewModel(var context: Context) : BaseViewModel(context) {
 
+    private val userCase = UserCases(context)
+
     private val _itemCard by lazy { MutableLiveData<ItemCardVO>() }
     val itemCard: LiveData<ItemCardVO>
         get() = _itemCard
@@ -37,8 +40,8 @@ class ItemCardViewModel(var context: Context) : BaseViewModel(context) {
 
 
 
-    private val _responseCode by lazy { MutableLiveData<String>() }
-    val responseCode: LiveData<String>
+    private val _responseCode by lazy { MutableLiveData<Int?>() }
+    val responseCode: LiveData<Int?>
         get() = _responseCode
 
     private val _itemProposalList by lazy { MutableLiveData<ItemProposalList>() }
@@ -152,10 +155,11 @@ class ItemCardViewModel(var context: Context) : BaseViewModel(context) {
     }
 
     fun getIdFromCodeSalix(code: String) {
-        salix.barcodes_toitem(code).enqueue(object : SalixCallback<String?>(context) {
+       userCase.itemToBarCode(code,salix)
+            .enqueue(object : SalixCallback<Int?>(context) {
 
-            override fun onSuccess(response: Response<String?>) {
-                _responseCode.value = response.body() ?: ""
+            override fun onSuccess(response: Response<Int?>) {
+                _responseCode.value = response.body()
 
             }
         })
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragment.kt
index 9c550b5d..12c415d9 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragment.kt
@@ -630,29 +630,18 @@ class CollectionFragment(
             responseCode.observe(viewLifecycleOwner, Observer {
 
                 if (!goBack2) {
-                    if (it.isError) {
+                    if (it == null) {
                         customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
-                            .setKoButton(getString(R.string.close)) {
-                                scanRequest()
-                                customDialog.dismiss()
-                            }.show()
+                        showErrorMessage(getString(R.string.codeNotExist))
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
                             onQuantityOfShelvingSelected(itemShelvingFkStored)
                         } else {
-                            var value = customDialogList.getValueTwo()
-                            customDialogList.setValueTwo("")
-                            if (it.response.isBlank() || it.response.isEmpty()) {
-                                showErrorMessage(getString(R.string.codeNotExist))
 
-                            } else {
                                 showErrorMessage(getString(R.string.lineNotExist))
-                            }
-
 
                             if (mperror != null) mperror?.start()
                         }
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPicker.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPicker.kt
index 4fc03d34..25d0ca62 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPicker.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPicker.kt
@@ -596,29 +596,21 @@ class CollectionFragmentPicker(
             responseCode.observe(viewLifecycleOwner, Observer {
 
                 if (!goBack2) {
-                    if (it.isError) {
+                    if (it == null) {
                         customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
-                            .setKoButton(getString(R.string.close)) {
-                                scanRequest()
-                                customDialog.dismiss()
-                            }.show()
+                        showErrorMessage(getString(R.string.codeNotExist))
+                        mperror?.start()
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
                             onQuantityOfShelvingSelected(itemShelvingFkStored)
                         } else {
-                            var value = customDialogList.getValueTwo()
+
                             customDialogList.setValueTwo("")
-                            if (it.response.isBlank() || it.response.isEmpty()) {
-                                showErrorMessage(getString(R.string.codeNotExist))
-
-                            } else {
-                                showErrorMessage(getString(R.string.lineNotExist))
-                            }
 
+                            showErrorMessage(getString(R.string.lineNotExist))
 
                             if (mperror != null) mperror?.start()
                         }
@@ -1098,7 +1090,7 @@ class CollectionFragmentPicker(
                     try {
                         customDialogList.setValue(
                             itemScanValue(
-                                customDialogList.getValue(), arrayOf("ticket","saleGroup"), "id"
+                                customDialogList.getValue(), arrayOf("ticket", "saleGroup"), "id"
                             ).toString()
                         )
 
@@ -2276,7 +2268,7 @@ class CollectionFragmentPicker(
                             .isShelving()
                     ) {
                         ma.messageWithSound(
-                            message =  getString(R.string.shelvingError),
+                            message = getString(R.string.shelvingError),
                             isError = true,
                             isPlayed = true,
                             isToasted = true
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerNew.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerNew.kt
index 77d3ea09..9d784588 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerNew.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerNew.kt
@@ -453,28 +453,19 @@ class CollectionFragmentPickerNew(
 
             responseCode.observe(viewLifecycleOwner) {
                 if (!goBack2) {
-                    if (it.isError) {
+                    if (it == null) {
                         customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
-                            .setKoButton(getString(R.string.close)) {
-                                customDialog.dismiss()
-                                scanRequest()
-                            }.show()
+                        showErrorMessage(text = getString(R.string.codeNotExist))
+                        if (mperror != null) mperror?.start()
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
                             onQuantityOfShelvingSelected(itemShelvingFkStored)
                         } else {
-                            customDialogList.setValueTwo("")
-                            if (it.response.isBlank() || it.response.isEmpty()) {
-                                showErrorMessage(text = getString(R.string.codeNotExist))
-
-                            } else {
-                                showErrorMessage(text = getString(R.string.lineNotExist))
-                            }
 
+                            showErrorMessage(text = getString(R.string.lineNotExist))
 
                             if (mperror != null) mperror?.start()
                         }
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerPreviousNew.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerPreviousNew.kt
index 1e401e84..6c09133c 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerPreviousNew.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPickerPreviousNew.kt
@@ -461,29 +461,18 @@ class CollectionFragmentPickerPreviousNew(
             responseCode.observe(viewLifecycleOwner) {
 
                 if (!goBack2) {
-                    if (it.isError) {
-                        customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
-                            .setKoButton(getString(R.string.close)) {
-                                customDialog.dismiss()
-                                scanRequest()
-                            }.show()
+                    if (it == null) {
+                        showErrorMessage(text = getString(R.string.codeNotExist))
+                        if (mperror != null) mperror?.start()
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
                             markLine(storedPosition, quantityReserveToCheckItemScan, null)
                         } else {
                             customDialogList.setValueTwo("")
-                            if (it.response.isBlank() || it.response.isEmpty()) {
-                                showErrorMessage(text = getString(R.string.codeNotExist))
-
-                            } else {
-                                showErrorMessage(text = getString(R.string.lineNotExist))
-                            }
-
-
+                            showErrorMessage(text = getString(R.string.lineNotExist))
                             if (mperror != null) mperror?.start()
                         }
                     }
@@ -833,7 +822,7 @@ class CollectionFragmentPickerPreviousNew(
 
             customDialogList.setValueTwo(
                 itemScanValue(
-                    customDialogList.getValueTwo(),   arrayOf("buy"), "more"
+                    customDialogList.getValueTwo(), arrayOf("buy"), "more"
                 ).toString()
             )
             val quantityToReserve = customDialogList.getValue().toInt()
@@ -981,7 +970,7 @@ class CollectionFragmentPickerPreviousNew(
                     try {
                         customDialogList.setValue(
                             itemScanValue(
-                                customDialogList.getValue(),   arrayOf("buy"), "more"
+                                customDialogList.getValue(), arrayOf("buy"), "more"
                             ).toString()
                         )
 
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPreChecker.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPreChecker.kt
index 5f717968..cab2c3e6 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPreChecker.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionFragmentPreChecker.kt
@@ -337,7 +337,6 @@ class CollectionFragmentPreChecker(
         hideKeyboard()
     }
 
-
     private fun scanRequest() {
         binding.scanInput.requestFocus()
         hideKeyboards()
@@ -424,8 +423,13 @@ class CollectionFragmentPreChecker(
                                 print = "0",
                                 source = type
                             )
-                        }catch (ex:Exception){
-                            ma.messageWithSound(message = getString(R.string.errorInput), isError = true, isPlayed = true, isToasted = true)
+                        } catch (ex: Exception) {
+                            ma.messageWithSound(
+                                message = getString(R.string.errorInput),
+                                isError = true,
+                                isPlayed = true,
+                                isToasted = true
+                            )
                         }
 
                         // findSale(binding.scanInput.text.toString())
@@ -632,29 +636,19 @@ class CollectionFragmentPreChecker(
             responseCode.observe(viewLifecycleOwner, Observer {
 
                 if (!goBack2) {
-                    if (it.isError) {
-                        customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
-                            .setKoButton(getString(R.string.close)) {
-                                scanRequest()
-                                customDialog.dismiss()
-                            }.show()
+                    if (it == null) {
+                        showErrorMessage((getString(R.string.codeNotExist)))
+                        if (mperror != null) mperror?.start()
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
                             onQuantityOfShelvingSelected(itemShelvingFkStored)
                         } else {
-                            var value = customDialogList.getValueTwo()
                             customDialogList.setValueTwo("")
-                            if (it.response.isBlank() || it.response.isEmpty()) {
-                                showErrorMessage(getString(R.string.codeNotExist))
-
-                            } else {
-                                showErrorMessage(getString(R.string.lineNotExist))
-                            }
 
+                            showErrorMessage(getString(R.string.lineNotExist))
 
                             if (mperror != null) mperror?.start()
                         }
@@ -741,7 +735,6 @@ class CollectionFragmentPreChecker(
               })*/
             responseGetExtensionFromUserId.observe(viewLifecycleOwner, Observer {
 
-
                 if (it.isError) {
                     if (!goMistakeBack)
                         ma.messageWithSound(
@@ -1488,7 +1481,6 @@ class CollectionFragmentPreChecker(
     //Tarea #4371 se quita para ver si funciona correctamente
     private fun saleTracking_mark(position: Int, type: String) {
 
-
         viewModel.run {
             saleTracking_mark(
                 saleFk = sales[position].saleFk,
@@ -1518,8 +1510,6 @@ class CollectionFragmentPreChecker(
                     setListPosition(position, false)
                     if (type != PRECHECKER) {
 
-
-
                         viewModel.itemShelvingUpdateFromSale(
                             sales[position].saleFk
                         )
@@ -1910,7 +1900,6 @@ class CollectionFragmentPreChecker(
                     getString(R.string.Todosloscampossonobligatorios).toast(requireContext())
                 } else {
 
-
                     viewModel.collectionAddItem(
                         itemFk = customDialogList.getValue().toInt(),
                         ticketFk = ticketSelected,
@@ -2102,7 +2091,6 @@ class CollectionFragmentPreChecker(
     private fun customDialogSetUsed() {
         if (!customDialogInput.getValue().isNullOrEmpty()) {
 
-
             viewModel.ticketCollection_setUsedShelves(
                 ticketFk = collection.collectionFk,
                 usedShelves = customDialogInput.getValue().toInt()
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionViewModel.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionViewModel.kt
index 53859026..f648a458 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionViewModel.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/collection/fragment/CollectionViewModel.kt
@@ -9,6 +9,7 @@ import es.verdnatura.MobileApplication
 import es.verdnatura.domain.SalixCallback
 import es.verdnatura.domain.formatWithQuotes
 import es.verdnatura.domain.toast
+import es.verdnatura.domain.userCases.UserCases
 import es.verdnatura.presentation.base.BaseViewModel
 import es.verdnatura.presentation.base.getMessageFromAllResponse
 import es.verdnatura.presentation.base.nameofFunction
@@ -33,7 +34,7 @@ import es.verdnatura.presentation.view.feature.workermistake.model.SaleTrackingD
 import retrofit2.Response
 
 class CollectionViewModel(val context: Context) : BaseViewModel(context) {
-
+    private val userCase = UserCases(context)
     private val contextApp = context
 
     private val _responseState by lazy { MutableLiveData<ResponseItemVO>() }
@@ -170,8 +171,8 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
     val responseNew: LiveData<ResponseItemVO>
         get() = _responseNew
 
-    private val _responseCode by lazy { MutableLiveData<ResponseItemVO>() }
-    val responseCode: LiveData<ResponseItemVO>
+    private val _responseCode by lazy { MutableLiveData<Int?>() }
+    val responseCode: LiveData<Int?>
         get() = _responseCode
 
     private val _responseIncQuantity by lazy { MutableLiveData<ResponseItemVO>() }
@@ -640,34 +641,31 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
 
         //Tarea 6889
         salix.addSale(
-            id = ticketFk,
-            barcode = itemFk.toString(),
-            quantity = quantity
-        )
-       /*   salix.addSaleByCode(
-                     CollectionItemSalix(
-                         itemFk.toString(),
-                         quantityFk,
-                         ticketFk,
-                         warehouseFk
-                     )
-                 )*/
+            id = ticketFk, barcode = itemFk.toString(), quantity = quantity
+        )/*   salix.addSaleByCode(
+                          CollectionItemSalix(
+                              itemFk.toString(),
+                              quantityFk,
+                              ticketFk,
+                              warehouseFk
+                          )
+                      )*/
 
-        .enqueue(object : SalixCallback<Any>(context) {
-            override fun onError(t: Throwable) {
+            .enqueue(object : SalixCallback<Any>(context) {
+                override fun onError(t: Throwable) {
 
-                _responseNew.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
-                )
-            }
+                    _responseNew.value = ResponseItemVO(
+                        isError = true,
+                        errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    )
+                }
 
-            override fun onSuccess(response: Response<Any>) {
-                _responseNew.value =
-                    ResponseItemVO(isError = false, response = response.message()!!)
+                override fun onSuccess(response: Response<Any>) {
+                    _responseNew.value =
+                        ResponseItemVO(isError = false, response = response.message()!!)
 
-            }
-        })
+                }
+            })
     }
 
     /* fun saleMove(
@@ -830,24 +828,14 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
     }
 
     fun getIdFromCodeSalix(code: String) {
-        salix.barcodes_toitem(code).enqueue(object : SalixCallback<String?>(context) {
-            override fun onError(t: Throwable) {
-                _responseCode.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
-                )
-            }
+        userCase.itemToBarCode(code, salix)
+            //salix.barcodes_toitem(code)
+            .enqueue(object : SalixCallback<Int?>(context) {
+                override fun onSuccess(response: Response<Int?>) {
+                    _responseCode.value = response.body()
 
-            override fun onSuccess(response: Response<String?>) {
-
-                _responseCode.value = ResponseItemVO(
-                    isError = false, response = if (response.body() == null) "" else {
-                        response!!.body().toString()
-                    }
-                )
-
-            }
-        })
+                }
+            })
     }
 
     fun collectionIncreaseQuantitySalix(
@@ -858,16 +846,18 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
         ).enqueue(object : SalixCallback<Any>(context) {
             override fun onError(t: Throwable) {
                 _responseIncQuantity.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
                 )
             }
 
             override fun onSuccess(response: Response<Any>) {
                 super.onSuccess(response)
 
-                _responseIncQuantity.value =
-                    ResponseItemVO(isError = false, response = response.message().toString())
+                _responseIncQuantity.value = ResponseItemVO(
+                    isError = false, response = response.message().toString()
+                )
             }
         })
     }
@@ -878,13 +868,16 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
 
         salix.saleMistakeAdd(
             SaleMistakeSalix(
-                userFk = (context as MobileApplication).userId!!, saleFk = saleFk, typeFk = typeFk
+                userFk = (context as MobileApplication).userId!!,
+                saleFk = saleFk,
+                typeFk = typeFk
             )
         ).enqueue(object : SalixCallback<Any>(context) {
             override fun onError(t: Throwable) {
                 _responseSaleMistakeAdd.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
                 )
             }
 
@@ -897,23 +890,25 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
     }
 
     fun mistakeType() {
-        salix.getMistakeTypes().enqueue(object : SalixCallback<List<MistakeTypeVO>>(context) {
-            override fun onSuccess(response: Response<List<MistakeTypeVO>>) {
-                if (response.body() != null) {
-                    _mistakeList.value = response.body()?.let { MistakeTypeListVO(it) }
-                } else {
+        salix.getMistakeTypes()
+            .enqueue(object : SalixCallback<List<MistakeTypeVO>>(context) {
+                override fun onSuccess(response: Response<List<MistakeTypeVO>>) {
+                    if (response.body() != null) {
+                        _mistakeList.value =
+                            response.body()?.let { MistakeTypeListVO(it) }
+                    } else {
+                        val listError: ArrayList<MistakeTypeVO> = ArrayList()
+                        listError.add(MistakeTypeVO(0, ""))
+                        _mistakeList.value = MistakeTypeListVO(listError)
+                    }
+                }
+
+                override fun onError(t: Throwable) {
                     val listError: ArrayList<MistakeTypeVO> = ArrayList()
                     listError.add(MistakeTypeVO(0, ""))
                     _mistakeList.value = MistakeTypeListVO(listError)
                 }
-            }
-
-            override fun onError(t: Throwable) {
-                val listError: ArrayList<MistakeTypeVO> = ArrayList()
-                listError.add(MistakeTypeVO(0, ""))
-                _mistakeList.value = MistakeTypeListVO(listError)
-            }
-        })
+            })
     }
 
     fun ticketIsOutClosureZone(
@@ -932,8 +927,9 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
 
             override fun onError(t: Throwable) {
                 _responseTicketClosure.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
                 )
             }
         })
@@ -964,14 +960,17 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
 
             override fun onError(t: Throwable) {
                 _responseTicketClosure.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
                 )
             }
 
             override fun onSuccess(response: Response<Any>) {
                 _responseTicketClosure.value = ResponseItemVO(
-                    isError = false, response = response.body()!!.toString(), errorMessage = ""
+                    isError = false,
+                    response = response.body()!!.toString(),
+                    errorMessage = ""
                 )
 
             }
@@ -987,8 +986,9 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
             .enqueue(object : SalixCallback<String>(context) {
                 override fun onError(t: Throwable) {
                     _responseCollectionUnchecked.value = ResponseItemVO(
-                        isError = true,
-                        errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                        isError = true, errorMessage = getMessageFromAllResponse(
+                            nameofFunction(this), t.message!!
+                        )
                     )
                 }
 
@@ -996,7 +996,9 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
                     if (response.body() != null) {
 
                         _responseCollectionUnchecked.value = ResponseItemVO(
-                            isError = false, response = response.body()!!, errorMessage = ""
+                            isError = false,
+                            response = response.body()!!,
+                            errorMessage = ""
                         )
                     } else {
                         _responseCollectionUnchecked.value = ResponseItemVO(
@@ -1022,8 +1024,9 @@ class CollectionViewModel(val context: Context) : BaseViewModel(context) {
             override fun onError(t: Throwable) {
 
                 _responseState.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
                 )
                 super.onError(t)
             }
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryParkingFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryParkingFragment.kt
index 0ed2d8f6..752cdffe 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryParkingFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryParkingFragment.kt
@@ -572,9 +572,9 @@ class InventaryParkingFragment(
         callGetInventory(parkingFrom, parkingTo)
     }
 
-    private fun checkItem(itemCode: String) {
+    private fun checkItem(itemCode: Int) {
         positionItemChecking = myListInventory.indexOfFirst { item ->
-            item.itemFk == itemCode.toInt() && item.shelvingFk.uppercase() == myListInventory[positionShelvingChecking].shelvingFk.uppercase() && item.isChecked == null
+            item.itemFk == itemCode && item.shelvingFk.uppercase() == myListInventory[positionShelvingChecking].shelvingFk.uppercase() && item.isChecked == null
         }
 
 
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryViewModel.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryViewModel.kt
index 04102168..8a270db1 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryViewModel.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/inventario/fragment/InventaryViewModel.kt
@@ -7,6 +7,7 @@ import androidx.lifecycle.map
 import com.google.gson.JsonObject
 import es.verdnatura.MobileApplication
 import es.verdnatura.domain.SalixCallback
+import es.verdnatura.domain.userCases.UserCases
 import es.verdnatura.presentation.base.BaseViewModel
 import es.verdnatura.presentation.base.getMessageFromAllResponse
 import es.verdnatura.presentation.base.nameofFunction
@@ -31,6 +32,7 @@ import retrofit2.Response
 
 class InventaryViewModel(val context: Context) : BaseViewModel(context) {
 
+    private val userCase = UserCases(context)
     private val _inventaryList by lazy { MutableLiveData<InventaryListVO>() }
     val inventaryList: LiveData<InventaryListVO>
         get() = _inventaryList
@@ -69,10 +71,10 @@ class InventaryViewModel(val context: Context) : BaseViewModel(context) {
     val loadInventaryParkingList: LiveData<Event<InventoryParkingList>> =
         _inventoryListParking.map { Event(it) }
 
-    private val _responseCode by lazy { MutableLiveData<String>() }
-    val responseCode: LiveData<String>
+    private val _responseCode by lazy { MutableLiveData<Int?>() }
+    val responseCode: LiveData<Int?>
         get() = _responseCode
-    val loadReponseCode: LiveData<Event<String>> = _responseCode.map { Event(it) }
+    val loadReponseCode: LiveData<Event<Int?>> = _responseCode.map { Event(it) }
 
     //sergio para obtener comprador
     fun itemShelvingBuyerGet() {
@@ -237,10 +239,11 @@ class InventaryViewModel(val context: Context) : BaseViewModel(context) {
     }
 
     fun getIdFromCodeSalix(code: String) {
-        salix.barcodes_toitem(code).enqueue(object : SalixCallback<String?>(context) {
-            override fun onSuccess(response: Response<String?>) {
+        userCase.itemToBarCode(code,salix)
+            .enqueue(object : SalixCallback<Int?>(context) {
+            override fun onSuccess(response: Response<Int?>) {
                 _responseCode.value =
-                    response.body()!!.toString()
+                    response.body()
             }
         })
     }
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/EndSacadorFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/EndSacadorFragment.kt
index 4683bdd2..d7d29b2f 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/EndSacadorFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/EndSacadorFragment.kt
@@ -365,15 +365,15 @@ class EndSacadorFragment(
             responseCode.observe(viewLifecycleOwner, Observer {
 
                 if (!goBack2) {
-                    if (it.isError) {
+                    if (it==null) {
                         customDialog.setTitle(getString(R.string.error))
-                            .setDescription(it.errorMessage)
+                            .setDescription(getString(R.string.itemNotValid))
                             .setKoButton(getString(R.string.close)) {
                                 scanRequest()
                                 customDialog.dismiss()
                             }.show()
                     } else {
-                        if (checkItemScan(it.response)) {
+                        if (checkItemScan(it.toString())) {
                             scanRequest()
                             customDialogList.dismiss()
                             mpok?.start()
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/PreSacadorViewModel.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/PreSacadorViewModel.kt
index 21d28b5e..a0895bbd 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/PreSacadorViewModel.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/presacador/fragment/PreSacadorViewModel.kt
@@ -4,9 +4,9 @@ import android.content.Context
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.map
-import es.verdnatura.R
 import es.verdnatura.domain.SalixCallback
 import es.verdnatura.domain.formatWithQuotes
+import es.verdnatura.domain.userCases.UserCases
 import es.verdnatura.presentation.base.BaseViewModel
 import es.verdnatura.presentation.base.getMessageFromAllResponse
 import es.verdnatura.presentation.base.nameofFunction
@@ -23,6 +23,7 @@ import retrofit2.Call
 import retrofit2.Response
 
 class PreSacadorViewModel(val context: Context) : BaseViewModel(context) {
+    private val userCase = UserCases(context)
 
     private val _salesList by lazy { MutableLiveData<List<PreSacadorItemVO>>() }
     val salesList: LiveData<List<PreSacadorItemVO>>
@@ -52,8 +53,8 @@ class PreSacadorViewModel(val context: Context) : BaseViewModel(context) {
     val placementSuppleyList: LiveData<PlacementSupplyListVO>
         get() = _placementSuppleyList
 
-    private val _responseCode by lazy { MutableLiveData<ResponseItemVO>() }
-    val responseCode: LiveData<ResponseItemVO>
+    private val _responseCode by lazy { MutableLiveData<Int?>() }
+    val responseCode: LiveData<Int?>
         get() = _responseCode
 
     private val _responseIncQuantity by lazy { MutableLiveData<ResponseItemVO>() }
@@ -204,46 +205,17 @@ class PreSacadorViewModel(val context: Context) : BaseViewModel(context) {
         }*/
 
     fun getIdFromCode(code: String) {
-        salix.barcodes_toitem(code).enqueue(object : SalixCallback<String?>(context) {
-            override fun onError(t: Throwable) {
-                _responseCode.value = ResponseItemVO(
-                    isError = true,
-                    errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
-                )
-            }
+        userCase.itemToBarCode(code, salix)
+            .enqueue(object : SalixCallback<Int?>(context) {
 
-            override fun onSuccess(response: Response<String?>) {
+                override fun onSuccess(response: Response<Int?>) {
 
-                //sergio: espera item en el body
-                if (response.body() == null) {
-                    _responseCode.value = ResponseItemVO(
-                        isError = true, errorMessage = context.getString(R.string.itemNotValid)
-                    )
-
-                } else {
-                    _responseCode.value =
-                        ResponseItemVO(isError = false, response = response.body()!!.toString())
-                }
-            }
-        })
-    }
-
-    /*    fun saleTrackingDel(saleFk: String) {
-            silex.saleTrackingDel(saleFk).enqueue(object : SilexCallback<Any>(context) {
-                override fun onError(t: Throwable) {
-                    _response.value = ResponseItemVO(
-                        isError = true,
-                        errorMessage = getMessageFromAllResponse(nameofFunction(this), t.message!!)
-                    )
-                }
-
-                override fun onSuccess(response: Response<Any>) {
-
-                    _response.value = ResponseItemVO(isError = false, response = response.message())
+                    _responseCode.value = response.body()
 
                 }
             })
-        }*/
+    }
+
 
     fun collectionIncreaseQuantity(
         saleFk: Int, quantity: Int
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragmentNew.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragmentNew.kt
index 53da7f49..f7d20036 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragmentNew.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragmentNew.kt
@@ -543,9 +543,7 @@ class UbicadorFragmentNew: BaseFragment<FragmentUbicadorBinding, UbicadorViewMod
             }
             loadResponseCode.observe(viewLifecycleOwner) { event ->
                 event.getContentIfNotHandled().notNull {
-                    //not always is true
-                   val response = it as? Long
-                    if (response!=null)checkUbications(response)
+                    checkUbications(it.toLong())
                 }
             }
 
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorViewModel.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorViewModel.kt
index 5bb4d03f..29349a53 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorViewModel.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorViewModel.kt
@@ -7,6 +7,7 @@ import androidx.lifecycle.map
 import com.google.gson.JsonObject
 import es.verdnatura.domain.SalixCallback
 import es.verdnatura.domain.formatWithQuotes
+import es.verdnatura.domain.userCases.UserCases
 import es.verdnatura.presentation.base.BaseViewModel
 import es.verdnatura.presentation.base.getMessageFromAllResponse
 import es.verdnatura.presentation.base.nameofFunction
@@ -26,6 +27,7 @@ import retrofit2.Call
 import retrofit2.Response
 
 class UbicadorViewModel(val context: Context) : BaseViewModel(context) {
+    private val userCase = UserCases(context)
 
     private val _shelvingList by lazy { MutableLiveData<ItemUbicadorListVO>() }
 
@@ -61,11 +63,11 @@ class UbicadorViewModel(val context: Context) : BaseViewModel(context) {
 
     val loadReubicationList: LiveData<Event<ReubicationList>> = _reubicationList.map { Event(it) }
 
-    private val _responseCode by lazy { MutableLiveData<Any?>() }
-    val responseCode: LiveData<Any?>
+    private val _responseCode by lazy { MutableLiveData<Int?>() }
+    val responseCode: LiveData<Int?>
         get() = _responseCode
 
-    val loadResponseCode: LiveData<Event<Any?>> = _responseCode.map { Event(it) }
+    val loadResponseCode: LiveData<Event<Int?>> = _responseCode.map { Event(it) }
 
     private val _responseAddList by lazy { MutableLiveData<ResponseItemVO>() }
     val responseAddList: LiveData<ResponseItemVO> = _responseAddList
@@ -401,9 +403,11 @@ class UbicadorViewModel(val context: Context) : BaseViewModel(context) {
     }
 
     fun getIdFromCode(code: String) {
-        salix.barcodes_toitem(code).enqueue(object : SalixCallback<String?>(context) {
+        userCase.itemToBarCode(code,salix)
+        //salix.barcodes_toitem(code)
+        .enqueue(object : SalixCallback<Int?>(context) {
 
-            override fun onSuccess(response: Response<String?>) {
+            override fun onSuccess(response: Response<Int?>) {
 
               _responseCode.value = response.body()