How To Fix CM_SUB_MLI038 - Background program for multiple inheritance was started

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SUB_MLI - Messages for Multilevel Inheritance

• Message number: 038

• Message text: Background program for multiple inheritance was started

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 CM_SUB_MLI038 - Background program for multiple inheritance was started ?

  The SAP error message CM_SUB_MLI038 indicates that a background program for multiple inheritance was started. This message typically arises in the context of the SAP system's handling of class and interface inheritance, particularly when dealing with multiple inheritance scenarios in ABAP (Advanced Business Application Programming).
  Cause:
  
  Multiple Inheritance: The error is related to the use of multiple inheritance in ABAP, which can lead to complex scenarios where the system needs to resolve conflicts or ambiguities in class definitions.
  Background Processing: The message indicates that a background job has been initiated to handle the multiple inheritance resolution process. This can occur when the system detects that a class or interface is involved in multiple inheritance and requires additional processing to ensure that the inheritance hierarchy is correctly established.
  
  Solution:
  
  Check Background Job: You can check the status of the background job that was started. Use transaction code SM37 to monitor the job and see if it completed successfully or if there were any errors during its execution.
  Review Class Definitions: Examine the class or interface definitions involved in the multiple inheritance scenario. Ensure that there are no conflicting methods or attributes that could lead to ambiguity.
  Adjust Inheritance Structure: If possible, simplify the inheritance structure. Consider using interfaces or abstract classes to avoid complex multiple inheritance scenarios.
  Consult SAP Notes: Check for any relevant SAP Notes that may address known issues or provide guidance on handling multiple inheritance in your specific version of SAP.
  Debugging: If the issue persists, you may need to debug the background job to identify the root cause of the problem. This may involve looking at the ABAP code that is being executed during the inheritance resolution process.
  
  Related Information:
  
  ABAP Documentation: Review the official SAP documentation on ABAP inheritance and class design principles to better understand how to structure your classes and interfaces.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Considerations: Be aware that complex inheritance structures can impact system performance, so it's advisable to keep your class hierarchies as simple as possible.
  
  If you continue to experience issues or if the background job fails, it may be necessary to involve your SAP Basis team or consult with SAP support for further assistance.