How To Fix OQ_C601 - More than one entry selected as main MM process for location indicator &1

SAP Error Message - Details

• Message type: E = Error

• Message class: OQ_C - IS-Oil SSR : Message pool Fuels

• Message number: 601

• Message text: More than one entry selected as main MM process for location indicator &1

What causes this issue?

You have not made the necessary entries.

System Response

This combination is not permitted.

How to fix this error?

Make sure that the entries are correct. Each location should have
exactly one process that is selected as a main process.

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 OQ_C601 - More than one entry selected as main MM process for location indicator &1 ?

  The SAP error message OQ_C601 indicates that there is an issue with the configuration of the Material Management (MM) process for a specific location indicator. This error typically arises when the system finds multiple entries that are marked as the main process for a given location indicator, which leads to ambiguity in processing.
  Cause:
  The primary cause of this error is that there are multiple entries in the configuration that are set as the main MM process for the same location indicator. This can happen due to:
  
  Duplicate Entries: There may be duplicate entries in the configuration tables for the location indicator.
  Incorrect Configuration: The configuration settings for the MM process may not have been set up correctly, leading to multiple main processes being defined.
  Data Migration Issues: If data was migrated from another system, it may have resulted in duplicate or conflicting entries.
  
  Solution:
  To resolve the OQ_C601 error, you can follow these steps:
  
  
  Check Configuration:
  
  Go to the configuration settings for the MM process related to the location indicator in question.
  Use transaction codes like SPRO to access the configuration menu.
  Navigate to the relevant section for defining the MM process and check for multiple entries for the same location indicator.
  
  
  
  Identify Duplicates:
  
  Use transaction codes like SE16 or SE11 to view the relevant database tables (e.g., T001W for plant data) and identify any duplicate entries for the location indicator.
  
  
  
  Correct the Entries:
  
  If duplicates are found, determine which entry should be the main process and delete or deactivate the others.
  Ensure that only one entry is marked as the main MM process for the location indicator.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration to ensure that the error no longer occurs.
  Perform transactions that previously triggered the error to confirm that the issue is resolved.
  
  
  
  Documentation:
  
  Document the changes made to the configuration for future reference and to prevent similar issues from occurring.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO, SE16, SE11, and MM01 for material master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that you have the necessary authorizations to make changes to the configuration settings.
  Backup: Always back up the current configuration before making changes to avoid data loss.
  
  By following these steps, you should be able to resolve the OQ_C601 error and ensure that your MM process configuration is set up correctly for the specified location indicator.