How To Fix SADL_GW_DT_CDS077 - ETag-Handling will not be supported totally

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_CDS - Messages CDS Checks

• Message number: 077

• Message text: ETag-Handling will not be supported totally

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_DT_CDS077 - ETag-Handling will not be supported totally ?

  The SAP error message SADL_GW_DT_CDS077 indicates that there is an issue with ETag handling in the context of the SAP Gateway and Core Data Services (CDS). This error typically arises when there is an attempt to use ETags for optimistic concurrency control in a scenario where it is not fully supported.
  Cause:
  
  ETag Handling Not Supported: The error suggests that the system is trying to use ETags for a CDS view or service that does not support ETag handling. ETags are used to manage versioning and concurrency in data access, and if the underlying service or data model does not implement this feature, the error will occur.
  Configuration Issues: There may be configuration issues in the OData service or the CDS view that prevent proper ETag handling.
  Version Mismatch: The version of the SAP system or the components involved may not support the ETag functionality as expected.
  
  Solution:
  
  Check CDS View and OData Service: Ensure that the CDS view and the associated OData service are correctly configured to support ETag handling. This may involve checking the annotations and settings in the CDS view.
  Update System: If you are running an older version of SAP, consider updating to a more recent version that has better support for ETag handling.
  Disable ETag Handling: If ETag handling is not necessary for your application, you can consider disabling it in the service configuration. This may involve modifying the service implementation to not rely on ETags.
  Consult Documentation: Review the SAP documentation related to the specific version of the system you are using to understand the limitations and capabilities regarding ETag handling.
  SAP Notes: Check for any relevant SAP Notes that may address this issue. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that enables the connection of devices, environments, and platforms to SAP systems. Understanding how it interacts with CDS views is crucial.
  Core Data Services (CDS): CDS is a framework for defining and consuming semantically rich data models in SAP. Familiarity with how CDS views are created and consumed can help in troubleshooting.
  OData Services: OData is a standard protocol for creating and consuming RESTful APIs. Understanding how OData services work in SAP can provide insights into how ETags are used.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.