How To Fix VF866 - Item &1 already exists in preliminary billing document &2.

VF866 - Overview

• Message type: E = Error

• Message class: VF - Billing

• Message number: 866

• Message text: Item &1 already exists in preliminary billing document &2.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VF866 - Item &1 already exists in preliminary billing document &2. ?

  The SAP error message VF866 indicates that there is an attempt to create or process a billing document (invoice) for an item that already exists in a preliminary billing document. This typically occurs in the context of billing processes where multiple billing documents are being generated, and the system detects a duplicate entry for the same item.
  
  Cause:
  
  Duplicate Item Entry: The item in question has already been included in a preliminary billing document, which means it cannot be processed again in a new billing document until the preliminary document is finalized or deleted.
  Incorrect Document Flow: There may be issues with the document flow where the same item is being referenced in multiple billing documents.
  System Configuration: There might be configuration settings in the billing process that allow for duplicate entries, leading to this error.
  
  
  Solution:
  
  Check Preliminary Billing Documents: Review the preliminary billing documents to see if the item is already included. You can