How To Fix SDDIC_DDLA_ANNOCHECK309 - Unchecked expressions are not allowed for annotation reference values

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_DDLA_ANNOCHECK - Messages for annotation usage check

• Message number: 309

• Message text: Unchecked expressions are not allowed for annotation reference values

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_DDLA_ANNOCHECK309 - Unchecked expressions are not allowed for annotation reference values ?

  The SAP error message SDDIC_DDLA_ANNOCHECK309 indicates that there are unchecked expressions being used in annotation reference values within your ABAP code or data model. This error typically arises when you are working with annotations in the context of Core Data Services (CDS) views or other ABAP development scenarios where annotations are used to enhance the metadata of your data models.
  Cause:
  The error occurs when:
  
  Annotations are defined in a way that references expressions that are not properly checked or validated.
  The expressions used in the annotation reference values are not deterministic or do not conform to the expected types or structures.
  There may be a syntax error or logical error in the way the annotations are defined.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Annotations: Check the annotations in your CDS view or ABAP code. Ensure that all expressions used in the annotation reference values are valid and properly defined.
  
  
  Check Expression Validity: Make sure that the expressions you are using are deterministic and can be evaluated without ambiguity. If you are using complex expressions, consider simplifying them or breaking them down into smaller parts.
  
  
  Use Proper Types: Ensure that the types of the expressions match the expected types for the annotations. For example, if an annotation expects a string, make sure you are not passing a numeric value or an incompatible type.
  
  
  Syntax Validation: Validate the syntax of your annotations. Look for any typos or incorrect usage of keywords that might lead to this error.
  
  
  Refer to Documentation: Consult the SAP documentation for the specific annotations you are using. This can provide insights into the expected structure and usage of those annotations.
  
  
  Testing: After making changes, test your CDS view or ABAP program to ensure that the error is resolved and that the annotations are functioning as intended.
  
  
  Related Information:
  
  SAP Notes and Knowledge Base Articles: Check for any relevant SAP Notes or KBA that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other developers have encountered similar issues and what solutions they have found.
  ABAP Development Tools: Utilize the ABAP Development Tools (ADT) in Eclipse for better syntax checking and error highlighting, which can help you identify issues more easily.
  
  By following these steps, you should be able to identify and resolve the cause of the SDDIC_DDLA_ANNOCHECK309 error in your SAP environment.