How To Fix OQ_C602 - No entry is selected as a 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: 602

• Message text: No entry is selected as a main MM process for location indicator &1

What causes this issue?

You have not made the required entries.

System Response

The combination of data that you entered is not allowed.

How to fix this error?

Make sure that the entries are correct.
Each location indicator should have exactly one process 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_C602 - No entry is selected as a main MM process for location indicator &1 ?

  The SAP error message OQ_C602, which states "No entry is selected as a main MM process for location indicator &1," typically occurs in the context of Material Management (MM) processes when the system cannot find a defined main process for a specific location indicator. This can happen during various transactions, such as when trying to create or modify material master records, or when executing certain MM-related functions.
  Cause:
  
  Missing Configuration: The main cause of this error is usually a missing or incorrect configuration in the system for the specified location indicator. The location indicator is used to determine how materials are managed in different locations (e.g., plants, storage locations).
  Incorrect Location Indicator: The location indicator specified in the transaction may not be valid or may not have been set up correctly in the system.
  Master Data Issues: There may be issues with the master data related to the material or location that is being referenced.
  
  Solution:
  To resolve the OQ_C602 error, you can follow these steps:
  
  
  Check Configuration:
  
  Go to the configuration settings in SAP for Material Management.
  Navigate to the relevant area where location indicators are defined (usually under Logistics > Material Management > Master Data > Material > Define Location Indicators).
  Ensure that a main MM process is assigned to the location indicator in question.
  
  
  
  Verify Location Indicator:
  
  Check if the location indicator (&1) mentioned in the error message is correctly defined in the system.
  If it is not defined, you may need to create a new entry or modify an existing one to ensure it has a main MM process assigned.
  
  
  
  Review Master Data:
  
  Check the material master data for the material you are working with. Ensure that all necessary fields are filled out correctly and that the location indicator is valid.
  If necessary, update the material master data to include the correct location indicator.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to the specific transaction you are trying to execute. This may provide additional insights into the requirements for the location indicator.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and master data, consider reaching out to SAP support for further assistance. They may provide specific guidance based on your system's configuration.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM01 (Create Material), MM02 (Change Material), or MM03 (Display Material) to check or modify material master data.
  SPRO Configuration: The configuration for location indicators can typically be found in the SPRO transaction under the relevant MM settings.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to the configuration or master data.
  
  By following these steps, you should be able to identify and resolve the cause of the OQ_C602 error in your SAP system.