Message type: E = Error
Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)
Message number: 321
Message text: Source document item (&1/&2) does not exist in billing document &3
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The SAP error message FKKBIX321 indicates that there is an issue with a source document item that is expected to be linked to a billing document, but it cannot be found. This error typically arises in the context of billing and invoicing processes within SAP, particularly when dealing with billing documents that are supposed to reference specific source documents (like sales orders or delivery documents).
Cause: Missing Source Document: The source document item (e.g., a sales order or delivery) referenced in the billing document does not exist or has been deleted. Incorrect Document Reference: The billing document may be referencing an incorrect or invalid item number. Data Inconsistency: There may be inconsistencies in the database, such as a mismatch between the billing document and the source document. Document Status: The source document may be in a status that does not allow it to be referenced (e.g., it may be closed or archived).
Configuration Issues: There may
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