Message type: E = Error
Message class:  ICC_FI_CN - Für die Meldungen extern vornum. Belege 
Message number: 040
Message text: Document &1 valid again
After you revalidated a document, the document status (unused, valid)
is sometimes shown incorrectly, and the output list might not match the
selection criteria anymore.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Run the report again.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message ICC_FI_CN040 "Document &1 valid again" typically occurs in the context of financial accounting and document management within SAP. This error indicates that a document that was previously marked as invalid or deleted is being attempted to be processed again, which is not allowed.
Cause: Document Status: The document in question has a status that indicates it was previously invalidated or deleted. This could happen due to various reasons, such as manual intervention, system processes, or errors during document processing. Reprocessing Attempt: There may be an attempt to reprocess or reverse a document that has already been marked as invalid, leading to this error message.
Solution: Check Document Status: Verify the status of the document in question. You can do this by using transaction codes like FB03 (Display Document) to see the document's details and status. Revalidate the Document: If the document needs to be reprocessed, you may need to revalidate it. This
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