How To Fix SD_CDS_READ_API021 - Name of association &1 is not valid, as it is longer than &2 characters

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_CDS_READ_API -

• Message number: 021

• Message text: Name of association &1 is not valid, as it is longer than &2 characters

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_READ_API021 - Name of association &1 is not valid, as it is longer than &2 characters ?

  The SAP error message SD_CDS_READ_API021 indicates that there is an issue with the name of an association in a Core Data Services (CDS) view. Specifically, the error states that the name of the association is not valid because it exceeds the maximum allowed length of characters.
  Cause:
  
  Name Length Exceeded: The primary cause of this error is that the name of the association defined in the CDS view exceeds the maximum length allowed by SAP, which is typically 30 characters.
  Incorrect Naming Conventions: The naming conventions for associations may not have been followed, leading to longer names than permitted.
  CDS View Definition: The error may arise from the way the CDS view is defined, particularly if the association names are generated dynamically or if they are manually defined with longer names.
  
  Solution:
  
  Shorten Association Names: Review the association names in your CDS view definition and ensure that they do not exceed the maximum length of 30 characters. Rename any associations that are too long.
  Follow Naming Conventions: Ensure that the naming conventions for associations are followed. Use meaningful but concise names that clearly describe the relationship without exceeding the character limit.
  Check CDS View Definition: If you are using a tool or framework that generates CDS views, check the configuration to ensure that it is not generating overly long names.
  Test Changes: After making the necessary changes, activate the CDS view and test it to ensure that the error is resolved.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Core Data Services to understand the naming conventions and limitations.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  ABAP Development Tools: If you are using ABAP Development Tools (ADT) in Eclipse, you can leverage the syntax check feature to identify potential issues in your CDS view before activation.
  
  By addressing the naming issue and ensuring compliance with SAP's constraints, you should be able to resolve the SD_CDS_READ_API021 error effectively.