How To Fix 26051 - Document number not in form &

SAP Error Message - Details

• Message type: E = Error

• Message class: 26 - Dokumentenverwaltung

• Message number: 051

• Message text: Document number not in form &

What causes this issue?

You want to create a document and have entered a document number which
does not match the form defined for this document type.
Via settings in Customizing (Document management), mixed number
assignment with EXIT is defined for this document type. This means that
the number can, for example, be made up of an external and an internal
string. The form of the number is stored in a program.
Your entry does not match the defined form.

System Response

The program determines the defined form for the document type you are
processing, and enters the character sequence in the field
<ZH>Document</>.

How to fix this error?

Confirm this message with ENTER.
If the system issues another message about version assignment, confirm
this in the same way.
Once you have entered your data and saved the document, you see a
pop-up window in which the system tells you the full document number
which has been assigned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 26051 - Document number not in form & ?

  The SAP error message 26051, "Document number not in form &," typically occurs when there is an issue with the document number being referenced in a transaction or process. This error can arise in various contexts, such as during document posting, invoice processing, or when trying to access a document that does not exist or is not in the expected format.
  Causes:
  
  Incorrect Document Number: The document number entered may be incorrect or does not exist in the system.
  Document Not Posted: The document may not have been posted yet, or it may have been deleted or archived.
  Authorization Issues: The user may not have the necessary authorizations to view or process the document.
  Data Consistency Issues: There may be inconsistencies in the database or issues with the document's status.
  Incorrect Form Configuration: The form associated with the document may not be correctly configured or may not match the document type.
  
  Solutions:
  
  Verify Document Number: Double-check the document number you are entering to ensure it is correct and exists in the system.
  Check Document Status: Ensure that the document has been posted and is not in a deleted or archived state.
  Review Authorizations: Confirm that you have the necessary permissions to access the document. If not, contact your system administrator.
  Check Configuration: Review the configuration of the form associated with the document to ensure it is set up correctly.
  Consult Logs: Check system logs for any additional error messages or warnings that may provide more context about the issue.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP documentation for further assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using various transaction codes (e.g., FB01 for document posting, MIRO for invoice verification) that could be relevant to the error.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation for the specific module you are working with (e.g., FI, MM) for more detailed troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution. If the problem continues, further investigation may be necessary, potentially involving technical support from SAP.