How To Fix FKKBIX320 - Two different billing documents (&1, &2) were transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 320

• Message text: Two different billing documents (&1, &2) were transferred

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 FKKBIX320 - Two different billing documents (&1, &2) were transferred ?

  The SAP error message FKKBIX320 indicates that there is a discrepancy in the billing documents being processed. Specifically, it suggests that two different billing documents are being transferred, which is not allowed in the context of the operation being performed. This error typically occurs in the context of billing or invoicing processes, particularly when dealing with financial transactions or document postings.
  
  Cause:
  
  Duplicate Billing Documents: The system has detected that two billing documents are being referenced simultaneously, which can happen if there is a mistake in the data entry or if the same transaction is being processed multiple times.
  Incorrect Configuration: There may be issues with the configuration of the billing process in the system, leading to conflicts in document handling.
  Data Integrity Issues: There could be inconsistencies in the database or issues with the data being transferred, such as incorrect references or missing information.
  User Error: Users may inadvertently select or input multiple billing