How To Fix SDDIC_DDLA_ANNOCHECK005 - Annotation value must be of type '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_DDLA_ANNOCHECK - Messages for annotation usage check

• Message number: 005

• Message text: Annotation value must be of type '&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 SDDIC_DDLA_ANNOCHECK005 - Annotation value must be of type '&1' ?

  The SAP error message SDDIC_DDLA_ANNOCHECK005 indicates that there is an issue with the type of an annotation value in your SAP application. Specifically, the error message states that the annotation value must be of a specific type, denoted by &1. This typically occurs in the context of SAP Fiori or SAP UI5 applications where annotations are used to define metadata for OData services.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Type Mismatch: The value assigned to an annotation does not match the expected data type. For example, if an annotation expects a string but receives a number, this error will occur.
  Incorrect Annotation Definition: The annotation might be defined incorrectly in the metadata or in the OData service.
  Data Model Issues: There may be inconsistencies in the data model that lead to type mismatches.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Annotation Definitions:
  
  Review the annotations in your OData service or metadata file. Ensure that the values assigned to annotations match the expected types.
  If you are using a specific annotation, refer to the SAP documentation to confirm the expected data type.
  
  
  
  Validate Data Types:
  
  Ensure that the data types in your data model (e.g., Entity Types, Properties) are correctly defined and match the expected types in the annotations.
  
  
  
  Debugging:
  
  Use debugging tools in SAP (like the ABAP debugger) to trace the execution and identify where the type mismatch occurs.
  Check the logs for additional context or details about the error.
  
  
  
  Testing:
  
  After making changes, test the application to ensure that the error is resolved. You can use tools like Postman or the SAP Gateway Client to test the OData service.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation or community forums for guidance on specific annotations and their expected types.
  
  
  
  Update SAP Notes:
  
  Check for any relevant SAP Notes that might address this issue. Sometimes, SAP releases patches or notes that provide fixes or workarounds for known issues.
  
  
  
  Related Information:
  
  SAP Fiori and UI5 Documentation: Review the official SAP documentation for Fiori and UI5 to understand how annotations work and the expected data types.
  OData Services: Familiarize yourself with OData service development and the role of annotations in defining service behavior.
  SAP Community: Engage with the SAP Community forums to seek advice from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the SDDIC_DDLA_ANNOCHECK005 error in your SAP application.