How To Fix GPSC009 - Only one Producing Unit is allowed within a single PSC Group

SAP Error Message - Details

• Message type: E = Error

• Message class: GPSC - PSC Application

• Message number: 009

• Message text: Only one Producing Unit is allowed within a single PSC Group

A maximum of one producing unit should exist within a PSC group. You
have entered multiple producing units, which may span the same period.
Please verify that you have entered the data correctly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GPSC009 - Only one Producing Unit is allowed within a single PSC Group ?

  The SAP error message GPSC009, which states "Only one Producing Unit is allowed within a single PSC Group," typically occurs in the context of SAP's Production and Supply Chain (PSC) modules. This error indicates that there is an attempt to assign multiple producing units to a single PSC group, which is not allowed according to the system's configuration.
  Cause:
  
  Configuration Issue: The PSC group is designed to handle only one producing unit, and the system has detected that multiple producing units are being assigned to it.
  Data Entry Error: During the creation or modification of a PSC group, multiple producing units may have been inadvertently added.
  Master Data Inconsistency: There may be inconsistencies in the master data that define the relationships between producing units and PSC groups.
  
  Solution:
  
  
  Review PSC Group Configuration:
  
  Check the configuration settings for the PSC group in the SAP system. Ensure that it is set up to allow only one producing unit.
  
  
  
  Modify the Assignment:
  
  If multiple producing units are assigned to the PSC group, you will need to remove the additional producing units. Only one producing unit should be linked to the PSC group.
  Navigate to the relevant transaction (e.g., using transaction codes like OPU1 or similar) to edit the PSC group and ensure only one producing unit is assigned.
  
  
  
  Check Master Data:
  
  Review the master data for both the producing units and the PSC groups to ensure that they are correctly defined and that there are no conflicting entries.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on configuring PSC groups and producing units.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration and data, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing PSC groups and producing units, such as OPU1 (for creating or changing PSC groups).
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  User Roles and Permissions: Ensure that the user has the necessary permissions to make changes to PSC groups and producing units.
  
  By following these steps, you should be able to resolve the GPSC009 error and ensure that your PSC groups are configured correctly within the SAP system.