How To Fix /IWBEP/CM_V4_ANNO026 - Simple value cannot be created for annotation &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_ANNO -

• Message number: 026

• Message text: Simple value cannot be created for annotation &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_ANNO026 - Simple value cannot be created for annotation &1 ?

  The SAP error message /IWBEP/CM_V4_ANNO026 indicates that there is an issue with creating a simple value for an annotation in an OData service. This error typically arises in the context of SAP Gateway and OData services when there is a problem with the metadata or the way annotations are defined.
  Cause:
  
  Invalid Annotation Definition: The annotation being referenced may not be defined correctly in the metadata. This could be due to a typo, incorrect data type, or missing properties.
  Data Type Mismatch: The value being assigned to the annotation may not match the expected data type. For example, if the annotation expects a string but receives a number, this error can occur.
  Missing Required Fields: If the annotation requires certain fields to be present and they are missing, this can lead to the error.
  Service Configuration Issues: There may be issues with the configuration of the OData service itself, such as missing or incorrect service definitions.
  
  Solution:
  
  Check Annotation Definitions: Review the annotation definitions in your OData service metadata. Ensure that all annotations are correctly defined and that there are no typos or incorrect data types.
  Validate Data Types: Ensure that the values being assigned to the annotations match the expected data types. If an annotation expects a string, make sure you are not passing a number or other incompatible type.
  Review Required Fields: Check if the annotation requires certain fields to be present and ensure that they are included in your service response.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for any additional error messages that might provide more context about the issue.
  Service Activation: Ensure that the OData service is properly activated and that all necessary components are in place.
  Update Metadata: If you have made changes to the underlying data model or annotations, make sure to regenerate and update the metadata for the OData service.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  OData Documentation: Review the official SAP documentation on OData services and annotations to ensure compliance with best practices.
  Community Forums: Engage with the SAP Community or forums where other developers may have encountered similar issues. They can provide insights or solutions based on their experiences.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_ANNO026 error in your SAP environment.