How To Fix FMITPOMC084 - Posting not possible; invoice must be an open item

SAP Error Message - Details

• Message type: E = Error

• Message class: FMITPOMC - Tranfer Transaction for Subledger Account

• Message number: 084

• Message text: Posting not possible; invoice must be an open item

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 FMITPOMC084 - Posting not possible; invoice must be an open item ?

  The SAP error message FMITPOMC084, which states "Posting not possible; invoice must be an open item," typically occurs in the context of financial transactions, particularly when dealing with invoices in the SAP system. This error indicates that the system is trying to post a transaction against an invoice that is not recognized as an open item, meaning it has already been cleared or settled.
  Cause:
  
  Invoice Status: The invoice you are trying to post against has already been cleared or settled in the system.
  Incorrect Document Type: The document type used for the invoice may not be configured to allow postings.
  Posting Period: The posting period may be closed, preventing any further postings against the invoice.
  Document Flow: There may be an issue with the document flow, where the invoice is not linked correctly to the relevant open item.
  
  Solution:
  
  Check Invoice Status: Verify the status of the invoice in the system. If it has been cleared, you will need to create a new invoice or find the correct open item to post against.
  Review Document Type: Ensure that the document type used for the invoice allows for the type of posting you are attempting. You may need to consult with your SAP administrator to check the configuration.
  Open Posting Period: Check if the posting period is open. If it is closed, you may need to open it or post in a different period.
  Correct Document Flow: Ensure that the invoice is correctly linked to the relevant open item. You may need to check the document flow in the system to confirm this.
  Consult SAP Notes: Look for any relevant SAP Notes or documentation that may provide additional insights or solutions specific to your version of SAP.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like FB03 (Display Document) to view the invoice and its status, or FBL1N (Vendor Line Item Display) to check open items.
  SAP Support: If the issue persists, consider reaching out to SAP support or your internal SAP helpdesk for further assistance.
  User Authorization: Ensure that you have the necessary authorizations to perform the posting you are attempting.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.