How To Fix SOS_MAPPING136 - Redefinition of persistence mapping: first remove existing assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: SOS_MAPPING - Object Services: Persistence Mapping for Messages

• Message number: 136

• Message text: Redefinition of persistence mapping: first remove existing assignment

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SOS_MAPPING136 - Redefinition of persistence mapping: first remove existing assignment ?

  The SAP error message SOS_MAPPING136, which states "Redefinition of persistence mapping: first remove existing assignment," typically occurs in the context of SAP's data modeling or persistence mapping, particularly when working with the ABAP Dictionary or when defining data models in SAP HANA.
  Cause:
  This error arises when you attempt to redefine a persistence mapping (such as a database table or view) that is already assigned to an existing object. In other words, the system detects that there is an existing mapping that conflicts with the new mapping you are trying to create or modify. This can happen in various scenarios, such as:
  
  Duplicate Mapping: You are trying to create a new mapping for a data structure that is already mapped to a database table or view.
  Changes in Data Model: You may have made changes to the data model that require the existing mapping to be removed before applying new changes.
  Inconsistent State: The system might be in an inconsistent state due to previous operations that did not complete successfully.
  
  Solution:
  To resolve this error, you need to remove the existing assignment or mapping before you can redefine it. Here are the steps you can follow:
  
  
  Identify Existing Mapping: Check the existing persistence mapping that is causing the conflict. You can do this by navigating to the relevant data model or using transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator).
  
  
  Remove Existing Assignment:
  
  Go to the data model or object where the existing mapping is defined.
  Remove or deactivate the existing mapping or assignment that is causing the conflict.
  Ensure that you save your changes.
  
  
  
  Redefine Mapping: After successfully removing the existing assignment, you can proceed to redefine the persistence mapping as needed.
  
  
  Activate Changes: Once you have made the necessary changes, make sure to activate the data model or object to apply the new mapping.
  
  
  Check for Dependencies: If the mapping is used in other objects or has dependencies, ensure that those are also addressed to avoid further conflicts.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Builder) for managing data models and mappings.
  Documentation: Refer to SAP Help documentation for detailed information on data modeling and persistence mapping.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  Testing: After making changes, perform thorough testing to ensure that the new mapping works as expected and does not introduce any new issues.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or development team for further assistance.