How To Fix MW453 - The order unit for plant &1 is not the same as in contract

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 453

• Message text: The order unit for plant &1 is not the same as in contract

What causes this issue?

Allocation table item was created referencing contract &V3&. The order
unit &V2& for the plant &V1& is not the same as the order unit &V4& in
the contract item.

System Response

The allocation table item cannot be processed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

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 MW453 - The order unit for plant &1 is not the same as in contract ?

  The SAP error message MW453 indicates that there is a mismatch between the order unit defined for a specific plant and the order unit specified in the associated contract. This typically occurs in the context of procurement or sales processes where the unit of measure (UoM) for the materials or products being ordered does not align with what is defined in the contract.
  Cause:
  
  Mismatch in Units of Measure: The order unit defined in the material master for the plant does not match the order unit specified in the contract.
  Incorrect Configuration: The configuration settings for the material or the contract may not be aligned, leading to discrepancies.
  Data Entry Errors: Manual entry errors during the creation of the contract or the material master can lead to this issue.
  Changes in Master Data: If the order unit for the material was changed after the contract was created, this could lead to a mismatch.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and verify the order unit for the relevant plant.
  Ensure that the order unit matches the one specified in the contract.
  
  
  
  Review Contract Details:
  
  Access the contract (transaction code ME33K) and check the order unit specified there.
  If necessary, update the contract to reflect the correct order unit.
  
  
  
  Adjust Configuration:
  
  If the issue is due to configuration settings, consult with your SAP configuration team to ensure that the units of measure are correctly set up in the system.
  
  
  
  Correct Data Entry:
  
  If the error was caused by incorrect data entry, correct the entries in either the material master or the contract as needed.
  
  
  
  Create a New Contract:
  
  If the contract cannot be modified due to business rules or if it is too complex, consider creating a new contract with the correct order unit.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on handling unit of measure issues.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  ME33K: Display Contract
  ME21N: Create Purchase Order
  
  
  Unit of Measure Configuration: Ensure that the units of measure are correctly defined in the system (transaction code OME1 for UoM settings).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the MW453 error and ensure that the order unit for the plant aligns with the contract specifications.