How To Fix SDDL_PARSER_MSG087 - Use of the association & can produce cyclical dependencies

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 087

• Message text: Use of the association & can produce cyclical dependencies

What causes this issue?

If associations are used within defining CDS views in path expressions
and are exposed as associations in the selection list, this can cause
cyclical dependencies between views - if these views reference each
other. These cycles cannot be cleared in every case by the Data
Dictionary.

System Response

Error in mass activation of CDS views

How to fix this error?

Associations should either be exposed in the selection list of a CDS
view, or defined locally only and used in path expressions.

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 SDDL_PARSER_MSG087 - Use of the association & can produce cyclical dependencies ?

  The SAP error message SDDL_PARSER_MSG087 indicates that there is a potential issue with the use of associations in your data model that could lead to cyclical dependencies. This typically occurs in the context of SAP's data modeling tools, such as when working with Core Data Services (CDS) views or other data definitions.
  Cause:
  The error arises when an association is defined in such a way that it can create a loop or cycle in the data model. This can happen if:
  
  An association points back to a parent entity in a way that creates a circular reference.
  There are multiple associations that interlink in a way that they can lead back to the original entity, creating a cycle.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Associations: Examine the associations defined in your data model. Look for any that may create a circular reference. Ensure that each association is necessary and correctly defined.
  
  
  Refactor Associations: If you identify associations that create cycles, consider refactoring them. This may involve:
  
  Removing unnecessary associations.
  Changing the direction of associations.
  Using alternative approaches to model the relationships without creating cycles.
  
  
  
  Use Annotations: In some cases, you can use annotations to control the behavior of associations and prevent cycles. For example, you might use the @EndUserText.label annotation to provide clarity on the purpose of an association.
  
  
  Test Changes: After making adjustments, test your data model to ensure that it functions correctly and that the error message no longer appears.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance on modeling practices that avoid cyclical dependencies.
  
  
  Related Information:
  
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or fixes related to this error.
  Data Modeling Best Practices: Familiarize yourself with best practices in data modeling within SAP to avoid common pitfalls, including cyclical dependencies.
  
  By carefully reviewing and adjusting your associations, you should be able to resolve the SDDL_PARSER_MSG087 error and create a more robust data model.