How To Fix SADL_GW_PUSHDOWN_GEN015 - Validation error: MDE &1 contains syntax or annotation error(s)

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_PUSHDOWN_GEN - MDE parser and generator

• Message number: 015

• Message text: Validation error: MDE &1 contains syntax or annotation error(s)

What causes this issue?

During the building of metadata extension<(>,<)> the system detected
that there are errors in the MDE file during validation.

System Response

How to fix this error?

Check the metadata extension and correct the syntax or annotation
error(s) first before attempting to pushdown annotations again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_PUSHDOWN_GEN015 - Validation error: MDE &1 contains syntax or annotation error(s) ?

  The SAP error message SADL_GW_PUSHDOWN_GEN015 indicates that there is a validation error related to the Model Definition Entity (MDE) in the context of the SAP Gateway and the SAP ABAP programming model. This error typically arises when there are syntax or annotation errors in the metadata definition of the OData service.
  Causes:
  
  Syntax Errors: There may be incorrect syntax in the annotations or definitions within the MDE. This could include missing commas, incorrect data types, or improperly defined relationships.
  Annotation Errors: Annotations that are not correctly defined or are incompatible with the data model can lead to this error. This includes using annotations that are not supported or incorrectly specifying their properties.
  Model Definition Issues: The underlying data model may have inconsistencies or issues that prevent it from being correctly interpreted by the OData service.
  Version Mismatch: If there are discrepancies between the versions of the SAP components being used, it may lead to validation errors.
  
  Solutions:
  
  Check Syntax: Review the MDE for any syntax errors. Ensure that all annotations are correctly formatted and that there are no missing or extra characters.
  Validate Annotations: Ensure that all annotations used in the MDE are valid and supported by the version of SAP you are using. Refer to the SAP documentation for the correct usage of annotations.
  Use Transaction Codes: Utilize transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check the definitions and annotations of the data model.
  Activate the Model: Sometimes, simply reactivating the model or the associated objects can resolve transient issues.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues.
  Debugging: If the issue persists, consider using debugging tools to trace the execution and identify where the validation fails.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any known issues or additional guidance.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found effective.
  Documentation: Refer to the official SAP documentation for the OData service and the ABAP programming model for detailed information on annotations and model definitions.
  
  By following these steps, you should be able to identify and resolve the cause of the SADL_GW_PUSHDOWN_GEN015 error.