diff --git a/modules/client/back/model-config.json b/modules/client/back/model-config.json
index e2192ab1b..8dcfaf504 100644
--- a/modules/client/back/model-config.json
+++ b/modules/client/back/model-config.json
@@ -154,5 +154,8 @@
     },
     "WorkerBusinessType": {
         "dataSource": "vn"
+    },
+    "PayrollCategory": {
+        "dataSource": "vn"
     }
 }
diff --git a/modules/client/back/models/business.json b/modules/client/back/models/business.json
index 78605d687..c870c8f6e 100644
--- a/modules/client/back/models/business.json
+++ b/modules/client/back/models/business.json
@@ -103,12 +103,16 @@
             "model": "OccupationCode",
             "foreignKey":"occupationCodeFk"
         },
+        "payrollCategory": {
+            "type": "belongsTo",
+            "model": "PayrollCategory",
+            "foreignKey":"workerBusinessCategoryFk"
+        },
         "workerBusinessProfessionalCategory": {
             "type": "belongsTo",
             "model": "WorkerBusinessProfessionalCategory",
             "foreignKey": "workerBusinessProfessionalCategoryFk"
-        }
-        ,
+        },
         "calendarType": {
             "type": "belongsTo",
             "model": "CalendarType",
diff --git a/modules/client/back/models/occupationCode.json b/modules/client/back/models/occupationCode.json
index 63c148a81..e40eaf2fe 100644
--- a/modules/client/back/models/occupationCode.json
+++ b/modules/client/back/models/occupationCode.json
@@ -8,7 +8,8 @@
     },
     "properties": {
         "code": {
-            "type": "string"
+            "type": "string",
+            "id": true
         },
         "name": {
             "type": "string"
diff --git a/modules/client/back/models/payroll-categories.json b/modules/client/back/models/payroll-categories.json
index 54ff8a4c0..ca3431ba9 100644
--- a/modules/client/back/models/payroll-categories.json
+++ b/modules/client/back/models/payroll-categories.json
@@ -1,5 +1,5 @@
 {
-    "name": "BusinessReasonEnd",
+    "name": "PayrollCategory",
     "base": "VnModel",
     "options": {
         "mysql": {