How To Fix SADL_GW_DT_CDS083 - Referenced field &1 must be read-only

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 083

• Message text: Referenced field &1 must be read-only

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS083 - Referenced field &1 must be read-only ?

  The SAP error message SADL_GW_DT_CDS083 indicates that a referenced field in a Core Data Services (CDS) view is expected to be read-only, but it is being treated as writable in the context of the operation you are trying to perform. This typically occurs in scenarios involving OData services or when working with CDS views that are exposed as OData entities.
  Cause:
  
  Field Definition: The field in question is defined in the CDS view as a read-only field, but the application or service is attempting to modify it.
  OData Service Configuration: The OData service might be incorrectly configured to allow updates on fields that are meant to be read-only.
  Business Logic: The business logic or application layer might be trying to write to a field that is inherently not meant to be modified.
  
  Solution:
  
  
  Check CDS View Definition: Review the CDS view definition to ensure that the field is correctly marked as read-only. This can be done by checking the annotations in the CDS view. For example, fields that are derived or calculated should be marked with the @Analytics.dataCategory: #DIMENSION or similar annotations that indicate they are not writable.
  
  
  OData Service Configuration: If you are using an OData service, ensure that the service is configured correctly. You may need to adjust the service definition to ensure that it does not allow updates to read-only fields.
  
  
  Application Logic: Review the application logic that is trying to write to this field. Ensure that any operations that attempt to modify this field are removed or adjusted to comply with the read-only nature of the field.
  
  
  Testing: After making the necessary changes, test the application or service again to ensure that the error is resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this specific error message.
  Documentation: Review the SAP documentation on CDS views and OData services to understand the implications of read-only fields and how they should be handled.
  Debugging: If the issue persists, consider using debugging tools to trace the exact point where the error occurs, which can provide more insight into the underlying cause.
  
  By following these steps, you should be able to resolve the error message SADL_GW_DT_CDS083 and ensure that your application or service behaves as expected.