How To Fix V1805 - A preceding document has already been assigned to the document header

V1805 - Overview

• Message type: E = Error

• Message class: V1 - Verkaufsbelegbearbeitung

• Message number: 805

• Message text: A preceding document has already been assigned to the document header

What causes this issue?

You have tried to assign a contract to the document header but it is
already assigned to preceding document &V1&.

System Response

The system does not allow you to carry out any more assignments.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

V1805 - Details

• The SAP error message V1805, which states "A preceding document has already been assigned to the document header," typically occurs in the context of sales and distribution (SD) processes. This error indicates that the system has detected that a document (such as a sales order, delivery, or invoice) is already linked to the document header you are trying to process.
  Causes:
  
  Duplicate Document Assignment: The document you are trying to create or modify is attempting to reference a document that has already been assigned to the same header.
  Incorrect Document Flow: There may be an issue with the sequence of document processing, where a document is being processed out of order.
  System Configuration: There may be specific configurations or settings in the SAP system that enforce unique document assignments.
  
  Solutions:
  
  Check Document Assignment: Review the document header to see which document is already assigned. You can do this by navigating to the document in question and