How To Fix MB051 - No number entered from external number range & (&, &)

SAP Error Message - Details

• Message type: E = Error

• Message class: MB - Logistics Information Library

• Message number: 051

• Message text: No number entered from external number range & (&, &)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MB051 - No number entered from external number range & (&, &) ?

  The SAP error message MB051 ("No number entered from external number range") typically occurs when you are trying to post a goods movement or perform an inventory transaction that requires a document number from an external number range, but no number has been provided or the number range is not properly configured.
  Cause:
  
  Missing Document Number: The system expects a document number from an external number range, but none has been entered.
  Number Range Configuration: The external number range may not be properly defined in the system, or it may not be assigned to the relevant document type.
  Authorization Issues: The user may not have the necessary authorizations to access or use the external number range.
  Transaction Type: The transaction you are trying to perform may require a specific number range that is not set up correctly.
  
  Solution:
  
  Enter a Document Number: If the transaction requires a document number, ensure that you enter a valid number from the external number range.
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Check the number range object related to the document type you are working with (e.g., material documents).
  Ensure that the external number range is defined and active.
  
  
  Assign Number Range:
  
  Use transaction code OMSN to check if the number range is assigned to the relevant document type.
  If not, assign the correct number range to the document type.
  
  
  User Authorizations: Ensure that the user has the necessary authorizations to use the external number range. This can be checked in transaction code SU01 (User Maintenance).
  Consult Documentation: Review the SAP documentation or consult with your SAP Basis or functional team to ensure that the configuration is correct.
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: Number Range Objects
  OMSN: Number Range Assignment
  SU01: User Maintenance
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to number ranges and document postings.
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.
  
  By following these steps, you should be able to resolve the MB051 error and successfully complete your transaction.