diff --git a/OpenAPI/TS28538_EdgeNrm.yaml b/OpenAPI/TS28538_EdgeNrm.yaml
index 83f86744da21584dabaed76065e4cf6c6a23b207..b837ad30fc2cf9ed5815a4c9901ec1b655493252 100644
--- a/OpenAPI/TS28538_EdgeNrm.yaml
+++ b/OpenAPI/TS28538_EdgeNrm.yaml
@@ -109,6 +109,7 @@ components:
     EASServicePermission:
       type: string
       description: any of enumerated value
+      readOnly: true
       enum:
         - TRIAL
         - SILVER
@@ -118,6 +119,7 @@ components:
     EASStatus:
       type: string
       description: any of enumerated value
+      readOnly: true
       enum:
         - ENABLED
         - DISABLED
@@ -136,9 +138,11 @@ components:
       properties:
         resourceId:
           type: string
+          readOnly: true
         reservationStatus:
           type: string
           description: any of enumrated value
+          readOnly: true
           enum:
             - RESERVED
             - USEd
@@ -199,6 +203,7 @@ components:
               $ref: '#/components/schemas/EESFunction-Multiple'
             availableEdgeVirtualResources:
               type: string
+              readOnly: true
    
     EASFunction-Single:
       allOf:
@@ -236,10 +241,13 @@ components:
           properties:
             aCID:
               type: string
+              readOnly: true
             eASProvider:
               type: string
+              readOnly: true
             eASdescription:
               type: string
+              readOnly: true
             eASSchedule:
               $ref: '#/components/schemas/Duration'
             eASGeographicalServiceArea:
@@ -252,10 +260,13 @@ components:
               $ref: '#/components/schemas/EASFeature'
             eASServiceContinuitySupport:
               type: boolean
+              readOnly: true
             eASDNAI:
               type: string
+              readOnly: true
             eASAvailabilityReportingPeriod:
               type: integer
+              readOnly: true
             eASStatus:
               $ref: '#/components/schemas/EASStatus'
     EESFunction-Single:
@@ -404,6 +415,7 @@ components:
           properties:
             bundleIdentifier:
               type: string
+              readOnly: true
             bundledEASIdentifier:
               type: string
             bundleType: