How To Fix /SCMTMS/OM251 - &1 cannot be assigned to &2; carrier doesn't match

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/OM -

• Message number: 251

• Message text: &1 cannot be assigned to &2; carrier doesn't match

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/OM251 - &1 cannot be assigned to &2; carrier doesn't match ?

  The SAP error message /SCMTMS/OM251 &1 cannot be assigned to &2; carrier doesn't match typically occurs in the SAP Transportation Management System (TMS) when there is a mismatch between the carrier assigned to a transportation requirement and the carrier that is allowed or expected for that specific transportation lane or route.
  Cause:
  
  Carrier Mismatch: The carrier specified in the transportation requirement does not match the carrier defined in the transportation lane or route.
  Configuration Issues: The configuration settings for the transportation lanes may not include the carrier you are trying to assign.
  Master Data Issues: The master data for the carrier or transportation lane may not be correctly set up or may be incomplete.
  Transportation Planning: The planning settings may restrict the use of certain carriers for specific routes or lanes.
  
  Solution:
  
  
  Check Carrier Assignment:
  
  Verify the carrier assigned to the transportation requirement. Ensure that it is the correct carrier that should be used for the specific route or lane.
  
  
  
  Review Transportation Lane Configuration:
  
  Go to the configuration settings for transportation lanes in SAP TMS and check if the carrier is included in the allowed carriers for that lane.
  If the carrier is not listed, you may need to add it to the transportation lane configuration.
  
  
  
  Update Master Data:
  
  Ensure that the master data for both the carrier and the transportation lane is complete and correctly configured.
  Check if the carrier is active and has the necessary authorizations to operate on the specified route.
  
  
  
  Adjust Planning Settings:
  
  Review the planning settings in SAP TMS to ensure that there are no restrictions preventing the use of the specified carrier for the transportation requirement.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on configuring carriers and transportation lanes.
  
  
  
  Testing:
  
  After making the necessary changes, test the assignment again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SCMTMS/OM for managing transportation lanes or /SCMTMS/PL for planning settings.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  User Roles and Authorizations: Ensure that the user has the necessary roles and authorizations to make changes to transportation lanes and carrier assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP Transportation Management.