diff --git a/OpenAPI/TS28561_NdtNrm.yaml b/OpenAPI/TS28561_NdtNrm.yaml
index d70651122a3611c738d8f05da3e224d2caf6289e..1dc4124404db869177c31c3482cb2227a2b3b085 100644
--- a/OpenAPI/TS28561_NdtNrm.yaml
+++ b/OpenAPI/TS28561_NdtNrm.yaml
@@ -39,6 +39,8 @@ components:
               New values can be added to this list in future releases to support new use cases.
           nDTFunctionScope:
             $ref: '#/components/schemas/NDTFunctionScope'
+          supportedExternalDataList:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
           nDTFunctionRefList:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
 
@@ -70,6 +72,8 @@ components:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
           nDTJobRefList:
             $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnListRo'
+          externalDataTypeRefList:
+            $ref: 'TS28623_ComDefs.yaml#/components/schemas/DnList'
     NDTReport-Single:
       description: >-
         This IOC represents the properties of an NDT report corresponding to an NDT job