How To Fix CM_SUB_MLI051 - Error &1 reading inheritance relationships for specification &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SUB_MLI - Messages for Multilevel Inheritance

• Message number: 051

• Message text: Error &1 reading inheritance relationships for specification &2

What causes this issue?

One of the following errors occurred when reading the inheritance
relationships of a specification:
1: The specification was not found.
2: The inheritance template was not found.
3, 4: An internal system error occurred.

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?

Open the specification and check the corresponding inheritance
relationships manually.

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 CM_SUB_MLI051 - Error &1 reading inheritance relationships for specification &2 ?

  The SAP error message CM_SUB_MLI051 typically indicates an issue with reading inheritance relationships for a specification in the context of SAP's Classification Management or Material Master data. This error can occur in various scenarios, such as when trying to access or modify specifications that have inheritance relationships defined.
  Cause:
  
  Missing or Incomplete Data: The specification or its related data may be incomplete or missing, leading to issues when the system tries to read the inheritance relationships.
  Authorization Issues: The user may not have the necessary authorizations to access the specification or its related data.
  Database Issues: There could be a problem with the database, such as corruption or inconsistency in the data related to the specifications.
  Configuration Issues: Incorrect configuration settings in the classification or specification management could lead to this error.
  
  Solution:
  
  Check Specification Data: Verify that the specification &2 exists and is complete. Ensure that all required fields and relationships are properly defined.
  Review Authorizations: Ensure that the user has the necessary authorizations to access and modify the specifications. This can be checked in the user roles and profiles.
  Database Consistency Check: Perform a consistency check on the database to identify and resolve any issues. This may involve running specific SAP transactions or reports designed to check data integrity.
  Configuration Review: Review the configuration settings related to classification and specifications to ensure they are set up correctly.
  SAP Notes and Support: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant context.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL02 (Change Class), CL03 (Display Class), or C223 (Maintain Inheritance Relationships) that may help in managing specifications and classifications.
  Documentation: Review SAP documentation related to Classification Management and Material Master data for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the CM_SUB_MLI051 error effectively.