diff --git a/OpenAPI/TS28623_ComDefs.yaml b/OpenAPI/TS28623_ComDefs.yaml
index 0467bd8099e38d846884f6c704ff836170b67ac4..42ede46e771aec87abfa07f8df0a69a01585f68d 100755
--- a/OpenAPI/TS28623_ComDefs.yaml
+++ b/OpenAPI/TS28623_ComDefs.yaml
@@ -196,16 +196,23 @@ components:
         - type: array
           items:
             $ref: 'TS28623_GenericNrm.yaml#/components/schemas/Tai'
+          minItems: 1
+          maxItems: 8
         - type: array
           items:
             $ref: '#/components/schemas/NrCellId'
+          minItems: 1
+          maxItems: 32
         - type: array
           items:
             $ref: '#/components/schemas/EutraCellId'
+          minItems: 1
+          maxItems: 32
         - type: array
           items:
             $ref: '#/components/schemas/UtraCellId'
-
+          minItems: 1
+          maxItems: 32
     Fqdn:
       type: string
       description: This datatype is used for writable attribute
diff --git a/OpenAPI/TS28623_GenericNrm.yaml b/OpenAPI/TS28623_GenericNrm.yaml
index a65dc2245f27d400f923e4f43867e54aea042353..c10868fa92533632db4c9cfb066e12ddf877a85c 100755
--- a/OpenAPI/TS28623_GenericNrm.yaml
+++ b/OpenAPI/TS28623_GenericNrm.yaml
@@ -62,7 +62,8 @@ components:
           uniqueItems: true
           items:
             type: string
-          readOnly: true  
+          readOnly: true 
+          minItems: 1 
         granularityPeriods:
           type: array
           uniqueItems: true
@@ -150,19 +151,28 @@ components:
       - type: array
         items:
           $ref: '#/components/schemas/NpnId-Type'
+        minItems: 1
       - oneOf:
         - type: array
           items:
             $ref: '#/components/schemas/EutraCellId'
+          minItems: 1
+          maxItems: 32
         - type: array
           items:
             $ref: '#/components/schemas/NrCellId'
+          minItems: 1
+          maxItems: 32
         - type: array
           items:
             $ref: '#/components/schemas/Tac'
+          minItems: 1
+          maxItems: 8
         - type: array
           items:
             $ref: '#/components/schemas/Tai'
+          minItems: 1
+          maxItems: 8
     Tai:
       type: object
       properties:
@@ -216,6 +226,8 @@ components:
                   - FRIDAY
                   - SATURDAY
                   - SUNDAY
+                minItems: 1
+                maxItems: 7
         - type: object
           properties:
             timeIntervals:
@@ -240,14 +252,12 @@ components:
           uniqueItems: true
           items:
             type: string
-          minItems: 1
           maxItems: 256  
         nIDList:
           type: array
           uniqueItems: true
           items:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/Nid'
-          minItems: 1
           maxItems: 16
       oneOf:
         - required: [plmnId, cAGIdList]
@@ -302,7 +312,8 @@ components:
           uniqueItems: true
           items:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/Mcc'
-          readOnly: true  
+          readOnly: true
+          minItems: 1
         priorityLabel:
           type: integer
           readOnly: true
diff --git a/OpenAPI/TS28623_MnSRegistryNrm.yaml b/OpenAPI/TS28623_MnSRegistryNrm.yaml
index eddba948c6e790e44d5742e2387bad376f592059..abc74b6b3d9e2c5cc52c7637681f178909b474de 100644
--- a/OpenAPI/TS28623_MnSRegistryNrm.yaml
+++ b/OpenAPI/TS28623_MnSRegistryNrm.yaml
@@ -64,6 +64,7 @@ components:
                uniqueItems: true
                items:
                  $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnRo'
+               minItems: 1
 
 #-------- Definition of YAML arrays for name-contained IOCs ----------------------
 
diff --git a/OpenAPI/TS28623_PmControlNrm.yaml b/OpenAPI/TS28623_PmControlNrm.yaml
index 865e830f691502cb5c19dc29d82744a8be11f612..bbbfa03e2e21fb1207de7d005247a6ff9c88424a 100644
--- a/OpenAPI/TS28623_PmControlNrm.yaml
+++ b/OpenAPI/TS28623_PmControlNrm.yaml
@@ -50,6 +50,7 @@ components:
                   uniqueItems: true
                   items:
                     type: string
+                  minItems: 1
                 granularityPeriod:
                   type: integer
                   minimum: 1
diff --git a/OpenAPI/TS28623_ThresholdMonitorNrm.yaml b/OpenAPI/TS28623_ThresholdMonitorNrm.yaml
index d456e046f8ea371a704f6093792d01e78b8c9931..6cc668b559aacb1a8171efd5fd3d2276fef842f2 100644
--- a/OpenAPI/TS28623_ThresholdMonitorNrm.yaml
+++ b/OpenAPI/TS28623_ThresholdMonitorNrm.yaml
@@ -34,6 +34,7 @@ components:
           uniqueItems: true
           items:
             type: string
+          minItems: 1
         thresholdDirection:
           type: string
           enum:
@@ -70,6 +71,7 @@ components:
                   uniqueItems: true
                   items:
                     $ref: '#/components/schemas/ThresholdInfo'
+                  minItems: 1
                 monitorGranularityPeriod:
                   type: integer
                   minimum: 1
diff --git a/OpenAPI/TS28623_TraceControlNrm.yaml b/OpenAPI/TS28623_TraceControlNrm.yaml
index 926732cfdf502549a47133e1f18ebab24a45aec5..70cd0cc44009a0156bd585f8da3184293c6faf9c 100644
--- a/OpenAPI/TS28623_TraceControlNrm.yaml
+++ b/OpenAPI/TS28623_TraceControlNrm.yaml
@@ -1413,7 +1413,10 @@ components:
       type: object
       properties:
         ueCoreMeasurements:
-          type: string
+          type: array
+          items:
+            type: string
+          minItems: 1
         ueCoreMeasGranularityPeriod:
           type: integer
         nfTypeToMeasure:
@@ -1465,6 +1468,10 @@ components:
           uniqueItems: true
           items:
             type: integer
+            minimum: 0
+            maximum: 1007
+          minItems: 1
+          maxItems: 32
     FreqInfo:
       description: specifies the carrier frequency and bands used in a cell.
       type: object
@@ -1476,6 +1483,7 @@ components:
           uniqueItems: true
           items: 
             type: integer
+          minItems: 1
     MbsfnArea:
       type: object
       properties: