How To Fix SO121 - Function <&> invalid for document <&>

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 121

• Message text: Function <&> invalid for document <&>

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 SO121 - Function <&> invalid for document <&> ?

  The SAP error message SO121, which states "Function <&> invalid for document <&>", typically occurs when you attempt to perform an operation on a document that is not valid for that specific function or transaction. This error can arise in various contexts, such as when dealing with sales orders, purchase orders, or other document types in SAP.
  Causes:
  
  Invalid Document Type: The document you are trying to process may not support the function you are attempting to execute. For example, you might be trying to perform a function that is only applicable to a specific type of document.
  Document Status: The document may be in a status that does not allow the requested operation. For instance, if the document is already completed or archived, certain functions may not be available.
  Authorization Issues: The user may not have the necessary authorizations to perform the function on the specified document.
  Configuration Issues: There may be configuration settings in the SAP system that restrict certain functions for specific document types.
  
  Solutions:
  
  Check Document Type: Verify that the document type you are working with is compatible with the function you are trying to execute. Refer to the SAP documentation or consult with your SAP administrator for the correct document types.
  Review Document Status: Check the status of the document to ensure it is in a state that allows the function to be executed. If the document is completed or in a locked state, you may need to take appropriate actions to unlock or change its status.
  Authorization Check: Ensure that you have the necessary authorizations to perform the function on the document. If not, contact your SAP security administrator to request the required permissions.
  Consult Configuration Settings: If you suspect that the issue is related to configuration, consult with your SAP Basis or configuration team to review the settings related to the document type and the functions available for it.
  Error Logs: Check the SAP error logs for more detailed information about the error. This can provide additional context that may help in diagnosing the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for the specific module you are working with (e.g., SD for Sales and Distribution, MM for Materials Management) to understand the functions and limitations of document types.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team for further investigation.