How To Fix WU105 - Allocation rule missing

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 105

• Message text: Allocation rule missing

What causes this issue?

A quantity to be allocated was specified, however, it was not
specified how this quantity is to be allocated to plants.

How to fix this error?

Please specify an allocation rule.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU105 - Allocation rule missing ?

  The SAP error message WU105 "Allocation rule missing" typically occurs in the context of the SAP system when dealing with the allocation of costs or resources, particularly in the areas of Controlling (CO) or Material Management (MM). This error indicates that the system is unable to find a valid allocation rule for the specified transaction or process.
  Cause:
  
  Missing Allocation Rule: The most common cause is that there is no allocation rule defined for the specific cost center, internal order, or project that you are trying to process.
  Incorrect Configuration: The allocation rules may not be properly configured in the system, or the relevant settings may not have been maintained.
  Data Entry Errors: There may be errors in the data entry, such as incorrect account assignments or missing information that prevents the system from finding the appropriate allocation rule.
  Versioning Issues: If there are multiple versions of allocation rules, the system may not be able to determine which one to use.
  
  Solution:
  
  
  Define Allocation Rules: 
  
  Go to the relevant configuration settings in SAP (usually in the Controlling module) and define the necessary allocation rules. This can typically be done in the transaction codes like OKB9 (for cost center allocation) or KSU5 (for internal orders).
  
  
  
  Check Existing Rules: 
  
  Review the existing allocation rules to ensure they are correctly set up and applicable to the cost centers or orders you are working with. You can use transaction codes like OKB2 to display allocation rules.
  
  
  
  Correct Data Entry: 
  
  Ensure that all required fields are filled out correctly in the transaction you are trying to execute. Double-check the account assignments and other relevant data.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help files for specific guidance on setting up allocation rules for your particular version of SAP.
  
  
  
  Testing: 
  
  After making changes, perform a test transaction to ensure that the error does not reoccur.
  
  
  
  Consult with SAP Support: 
  
  If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OKB9, KSU5, OKB2, and others related to cost allocation.
  SAP Notes: Check SAP Notes for any known issues or patches related to the WU105 error.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to create or modify allocation rules.
  Training and Documentation: Consider training sessions or documentation for users involved in cost allocation processes to minimize errors in the future.
  
  By addressing the missing allocation rule and ensuring proper configuration, you should be able to resolve the WU105 error in SAP.