How To Fix WU138 - Stock allocation already carried out

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 138

• Message text: Stock allocation already carried out

What causes this issue?

The function "Generate allocation table" was started in subsequent
processing. Generation has however already been carried out for the
selected promotion items and cannot be carried out again

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message WU138 - Stock allocation already carried out ?

  The SAP error message WU138, which states "Stock allocation already carried out," typically occurs in the context of inventory management and stock allocation processes. This error indicates that an attempt is being made to allocate stock that has already been allocated in a previous transaction. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Duplicate Allocation Attempt: The most common cause is that the stock has already been allocated to a specific order or delivery, and a subsequent attempt is being made to allocate the same stock again.
  System Configuration: There may be specific configurations or settings in the system that prevent reallocation of stock once it has been allocated.
  Transaction Errors: Errors in the transaction process, such as incorrect order numbers or delivery documents, can lead to this message being triggered.
  
  Solutions:
  
  Check Allocation Status: Verify the current allocation status of the stock. You can do this by checking the relevant documents (e.g., sales orders, delivery documents) to see if the stock is already allocated.
  Use Different Stock: If the stock is already allocated, consider using different stock that is not currently allocated to fulfill the order.
  Revoke Allocation: If necessary and if business processes allow, you may need to revoke the existing allocation before attempting to allocate the stock again. This can usually be done through the relevant transaction codes in SAP.
  Review Configuration: If this error occurs frequently, it may be worth reviewing the configuration settings in the system to ensure they align with business processes and do not inadvertently prevent necessary allocations.
  Consult Documentation: Refer to SAP documentation or help resources for specific transaction codes and processes related to stock allocation to ensure proper procedures are being followed.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MB1A: Goods Withdrawal
  MB1B: Transfer Posting
  VL01N: Create Outbound Delivery
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Permissions: Ensure that the user attempting the allocation has the necessary permissions to perform stock allocations.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.