diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragment.kt
index 140dd8e8..5110ef13 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/ubicador/fragment/UbicadorFragment.kt
@@ -30,6 +30,7 @@ import es.verdnatura.presentation.view.feature.main.activity.MainActivity
 import es.verdnatura.presentation.view.feature.pasillero.model.PasillerosItemVO
 import es.verdnatura.presentation.view.feature.ubicador.adapter.UbicadorAdapter
 import es.verdnatura.presentation.view.feature.ubicador.model.ItemUbicadorVO
+import java.lang.Boolean.TRUE
 
 
 @Suppress("UNUSED_ANONYMOUS_PARAMETER")
@@ -52,6 +53,7 @@ class UbicadorFragment(
     private var pasillerosItemClickListener: OnPasillerosItemClickListener? = null
     private var isShelvinLogfromMainScreen = false
     private var modeCheckUbication = false
+    private var itemScannedScreen = 0
     var mperror: MediaPlayer? = null
     var mpok: MediaPlayer? = null
     var isBack = false
@@ -112,7 +114,7 @@ class UbicadorFragment(
         iconReload.setImageResource(R.drawable.ic_autorenew_black_24dp)
 
 
-        // binding.mainToolbar.switchButton.visibility = VISIBLE
+       //Tarea#5052 binding.mainToolbar.switchButton.visibility = VISIBLE
         binding.mainToolbar.switchButton.setOnCheckedChangeListener { buttonView, isChecked ->
             if (binding.mainToolbar.toolbarTitle.text == getString(R.string.titleUbicator)) {
                 ma.messageWithSound(getString(R.string.scanShelving), false, false)
@@ -245,12 +247,9 @@ class UbicadorFragment(
                     )
 
                 }
-
                 ma.hideKeyboard(binding.editPrioridad)
-                //return@setOnEditorActionListener false
             }
 
-            //return@setOnEditorActionListener false
             binding.editMatricula.requestFocus()
             return@setOnEditorActionListener false
         }
@@ -259,7 +258,6 @@ class UbicadorFragment(
         binding.automaticImg.setOnClickListener {
             if (!shelvingFk.isNullOrEmpty())
 
-            //Tarea #4778 Para llamar a Revisar items poner R.string.titleChecker
                 ma.onPasillerosItemClickListener(
                     PasillerosItemVO(title = getString(R.string.titleAuto)),
                     //PasillerosItemVO(title = getString(R.string.titleChecker)),
@@ -362,7 +360,8 @@ class UbicadorFragment(
             customDialog.setTitle(getString(R.string.empty))
                 .setDescription(getString(R.string.operationNoReturn))
                 .setOkButton(getString(R.string.empty)) {
-                    viewModel.clearShelvingList(shelvingFk
+                    viewModel.clearShelvingList(
+                        shelvingFk
                     )
                     listItems.forEach {
                         it.stickers = "0"
@@ -382,37 +381,27 @@ class UbicadorFragment(
     }
 
     private fun checkUbications(itemScanned: Int) {
-
-        for (item in listItems) {
-            if (item.item == itemScanned) {
-                item.checked = true
-                ma.messageWithSound("", false, true, "", false)
-            }
-        }
+        itemScannedScreen = itemScanned
+        val listInt: ArrayList<Int> = ArrayList()
 
         if (listItems.filter { it.item == itemScanned }.isEmpty()) {
-            binding.splashProgress.visibility = View.GONE
-            listItems.add(
-                ItemUbicadorVO(
-                    item = itemScanned,
-                    visible = "0",
-                    packing = "0",
-                    grouping = "0",
-                    isNew = true
-                )
-            )
-            listLocalItems = listItems.clone() as ArrayList<ItemUbicadorVO>
+            listInt.add(itemScanned)
+        } else {
+            listItems.sortedBy { it.isChecked }.forEachIndexed { index, item ->
+                if (item.item == itemScanned) {
+                    item.checked = true
+                    listInt.add(item.item)
+                    ma.messageWithSound("", false, true, "", false)
+                }
+            }
 
-            viewModel.itemShelvingMake(
-
-                shelving = shelvingFk,
-                item = itemScanned,
-                quantity = 0,
-                packing = null,
-                warehouse = getDataInt(WAREHOUSEFK),
-                grouping = null
-            )
         }
+        viewModel.itemShelving_addList(
+            shelvingFk,
+            "" + listInt + "",
+            TRUE,
+            getDataInt(WAREHOUSEFK)
+        )
 
         adapter!!.notifyDataSetChanged()
     }
@@ -488,7 +477,7 @@ class UbicadorFragment(
                         }
 
                         adapter = UbicadorAdapter(
-                            listItems,
+                            listItems.sortedBy { it.isChecked },
                             onPasillerosItemClickListener = pasillerosItemClickListener!!,
                             onVisibleClickListener = object : OnVisibleClickListener {
                                 override fun onVisibleClickListener(item: ItemUbicadorVO) {
@@ -520,18 +509,38 @@ class UbicadorFragment(
                             LinearLayoutManager(
                                 requireContext(),
                                 LinearLayoutManager.VERTICAL,
-                                true
+                                false
                             )
 
                         if (isShelvinLogfromMainScreen) {
-                            //tarea 4454
                             viewModel.shelvinLog_add(shelvingFk)
                         }
+                        if (modeCheckUbication) {
+                            listItems.sortedBy { it.isChecked }.forEachIndexed { index, item ->
+                                if (item.item == itemScannedScreen) {
+                                    binding.locationRecyclerview.scrollToPosition(index)
+                                }
+                            }
 
+                        } else {
+                            (binding.locationRecyclerview.layoutManager as LinearLayoutManager).scrollToPosition(
+                                0
+                            )
+                        }
                     }
                 }
             })
+            responseAddList.observe(viewLifecycleOwner, Observer {
 
+                if (it.isError) {
+                    ma.messageWithSound(it.errorMessage, it.isError, false)
+
+                } else {
+                    binding.splashProgress.visibility = VISIBLE
+                    viewModel.itemShelvingList(shelvingFk)
+
+                }
+            })
             response.observe(viewLifecycleOwner, Observer {
 
                 if (it.isError) {
@@ -544,7 +553,7 @@ class UbicadorFragment(
                 }
             })
             responseCode.observe(viewLifecycleOwner, Observer {
-                binding.splashProgress.visibility = View.GONE
+                binding.splashProgress.visibility = GONE
                 if (it.isError) {
                     ma.messageWithSound(it.errorMessage, true, true)
                 } else {
@@ -601,7 +610,11 @@ class UbicadorFragment(
                 }
                 saveNewItem(
                     customDialogUbicador.getItemValue().toInt(),
-                    if (customDialogUbicador.getEtiquetaValue().isNullOrEmpty()) {1}else{customDialogUbicador.getEtiquetaValue().toInt()},
+                    if (customDialogUbicador.getEtiquetaValue().isNullOrEmpty()) {
+                        1
+                    } else {
+                        customDialogUbicador.getEtiquetaValue().toInt()
+                    },
                     if (customDialogUbicador.getPackingValue().isNullOrEmpty()) {
                         null
                     } else {
@@ -676,7 +689,11 @@ class UbicadorFragment(
                     },
                     if (delete) packingUpdate else null,
                     itemUbicador.id,
-                    if (customDialogUbicador.getGroupingValue().isNullOrEmpty()) {null}else{customDialogUbicador.getGroupingValue().toInt()}
+                    if (customDialogUbicador.getGroupingValue().isNullOrEmpty()) {
+                        null
+                    } else {
+                        customDialogUbicador.getGroupingValue().toInt()
+                    }
                 )
                 return@setOnEditorActionListener true
             }
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 498691f7..f0afb6a4 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
@@ -41,6 +41,9 @@ class UbicadorViewModel(val context: Context) : BaseViewModel(context) {
     val responseCode: LiveData<ResponseItemVO>
         get() = _responseCode
 
+    private val _responseAddList by lazy { MutableLiveData<ResponseItemVO>() }
+    val responseAddList: LiveData<ResponseItemVO> =  _responseAddList
+
     fun itemShelvingList(
         vShelvingFk: String
     ) {
@@ -105,7 +108,34 @@ class UbicadorViewModel(val context: Context) : BaseViewModel(context) {
                 }
             })
     }
+    fun itemShelving_addList(
+        shelving: String,
+        items: Any,
+        isChecking: Boolean,
+        warehouse: Int
+    ) {
+        silex.itemShelving_addList(
+            shelving,
+            items,
+            isChecking,
+            warehouse
+        ).enqueue(object :
+            SilexCallback<Any>(context) {
+            override fun onError(t: Throwable) {
+                _responseAddList.value = ResponseItemVO(
+                    isError = true, errorMessage = getMessageFromAllResponse(
+                        nameofFunction(this), t.message!!
+                    )
+                )
+            }
 
+            override fun onSuccess(response: Response<Any>) {
+                _responseAddList.value =
+                    ResponseItemVO(isError = false, response = response.message()!!)
+
+            }
+        })
+    }
     fun itemShelvingMake(
         shelving: String,
         item: Int,