How To Fix V4171 - &2 billing documents were created for external document &1

V4171 - Overview

• Message type: E = Error

• Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)

• Message number: 171

• Message text: &2 billing documents were created for external document &1

System Response

The system terminates processing of the intermediate document (IDoc).

Error message extract from SAP system. Copyright SAP SE.

V4171 - Details

• The SAP error message V4171 indicates that multiple billing documents have been created for a single external document. This typically occurs in scenarios where the system detects that a billing document has already been generated for a specific external reference, leading to a conflict when attempting to create another billing document for the same reference.
  
  Cause:
  
  Duplicate Billing Document Creation: The most common cause is that the system has already processed a billing document for the specified external document number, and an attempt is being made to create another one.
  Incorrect Configuration: There may be issues with the configuration of the billing process or the way external documents are linked to billing documents.
  User Error: Users may inadvertently attempt to create a billing document for an external document that has already been billed.
  
  
  Solution:
  
  Check Existing Billing Documents: Verify if a billing document already exists for the external document number in question. You can do this