How To Fix M8423 - Save the document and then post it

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 423

• Message text: Save the document and then post it

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M8423 - Save the document and then post it ?

  The SAP error message M8423 ("Save the document and then post it") typically occurs in the context of material management or inventory management when a user attempts to post a document (like a goods movement or inventory adjustment) without first saving the document. This error is a safeguard to ensure that all necessary data is captured before the posting action is executed.
  Cause:
  
  Unsaved Document: The most common cause of this error is that the user has not saved the document they are working on. In SAP, certain actions (like posting) require that the document be saved first.
  Incomplete Data: If the document has not been fully completed or if there are mandatory fields that are not filled out, the system may prevent posting until the document is saved.
  Session Timeout: If the user has been inactive for a while, the session may time out, leading to unsaved changes.
  
  Solution:
  
  Save the Document: Before attempting to post, ensure that you save the document. Look for the "Save" button (usually represented by a disk icon) in the toolbar or use the keyboard shortcut (often Ctrl + S).
  Check for Errors: After saving, check for any error messages or warnings that may indicate missing or incorrect data. Resolve any issues before attempting to post again.
  Complete Required Fields: Make sure all mandatory fields are filled out correctly. If any fields are highlighted or marked as required, ensure they are completed.
  Reopen the Document: If you suspect a session timeout or other issues, try closing and reopening the document, then save and post again.
  Consult Documentation: If the issue persists, refer to SAP documentation or consult with your SAP support team for further assistance.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to inventory management, such as MIGO (Goods Movement), MB1A (Goods Withdrawal), or MB1B (Transfer Posting).
  User Permissions: Ensure that the user has the necessary permissions to perform the save and post actions.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the M8423 error and successfully post your document in SAP.