How To Fix /SCWM/BIF_TWH012 - Supply chain unit &1 already mapped to another warehouse

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/BIF_TWH -

• Message number: 012

• Message text: Supply chain unit &1 already mapped to another warehouse

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 /SCWM/BIF_TWH012 - Supply chain unit &1 already mapped to another warehouse ?

  The SAP error message /SCWM/BIF_TWH012 indicates that a supply chain unit (SCU) is already mapped to another warehouse in the system. This typically occurs in the context of warehouse management and logistics execution within the SAP Extended Warehouse Management (EWM) module.
  Cause:
  
  Existing Mapping: The supply chain unit you are trying to map to a new warehouse is already associated with a different warehouse.
  Data Integrity: The system enforces data integrity rules to prevent the same SCU from being linked to multiple warehouses simultaneously.
  Configuration Issues: There may be configuration settings that prevent the reassignment of SCUs between warehouses.
  
  Solution:
  
  
  Check Current Mapping: 
  
  Use transaction codes like /SCWM/SCU or relevant reports to check the current mapping of the supply chain unit. Identify which warehouse it is currently mapped to.
  
  
  
  Unmap the SCU:
  
  If you need to reassign the SCU to a different warehouse, you will first need to unmap it from the current warehouse. This can typically be done through the EWM interface or relevant transaction codes.
  
  
  
  Reassign the SCU:
  
  After unmapping, you can then proceed to map the SCU to the desired warehouse.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to warehouse management and supply chain units for specific steps and guidelines.
  
  
  
  Check User Authorizations: 
  
  Ensure that you have the necessary authorizations to perform mapping and unmapping actions in the system.
  
  
  
  Contact Support: 
  
  If the issue persists or if you are unsure about the implications of unmapping a SCU, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP EWM, such as /SCWM/SCU, /SCWM/WM, and others that pertain to warehouse management.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Training and Documentation: Consider training sessions or documentation on SAP EWM to better understand the mapping of supply chain units and warehouse management processes.
  
  By following these steps, you should be able to resolve the error and successfully manage the mapping of supply chain units in your SAP EWM system.