How To Fix SDDL_PARSER_MSG127 - Association &2 is not required for selection of the element &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 127

• Message text: Association &2 is not required for selection of the element &1

What causes this issue?

The association &V2& is not necessary for the selection of the attribute
&V1& because ? due to the underlying On clause ? the value is already
contained in &V3& (attribute: &V4&). Using the association &V2& at this
point results in a LEFT OUTER JOIN in the database view.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Instead of the association &V2&, the attribute &V4& should be read
directly from the underlying data source (table or view).

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG127 - Association &2 is not required for selection of the element &1 ?

  The SAP error message SDDL_PARSER_MSG127 indicates that there is an issue with the selection criteria in a data model or configuration where an association is not necessary for the selection of a specific element. This typically occurs in the context of SAP's Semantic Data Definition Language (SDDL) or when working with data models in SAP systems.
  Cause:
  The error arises when:
  
  An association (denoted as &2 in the message) is defined in a way that it is not needed for the selection of the element (denoted as &1).
  The data model or query is trying to use an association that does not contribute to the selection criteria, which can lead to confusion or inefficiencies in data retrieval.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Data Model: Check the data model or the query definition where the error occurs. Ensure that the associations defined are necessary for the selection of the elements you are trying to retrieve.
  
  
  Remove Unnecessary Associations: If the association is not required for the selection of the element, consider removing it from the query or data model. This can simplify the model and eliminate the error.
  
  
  Check Association Definitions: Ensure that the associations are correctly defined and that they logically connect the entities involved. If an association is meant to be used, verify that it is correctly implemented.
  
  
  Consult Documentation: Refer to SAP documentation or help resources related to the specific module or functionality you are working with. This can provide insights into the correct usage of associations and data selection.
  
  
  Testing: After making changes, test the query or data model to ensure that it functions correctly without the error.
  
  
  Related Information:
  
  SAP Notes and Knowledge Base Articles: Check SAP's support portal for any notes or articles related to this specific error message. There may be updates or patches that address similar issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  SAP Help Portal: Utilize the SAP Help Portal for detailed information on data modeling, associations, and best practices in SDDL.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.