How To Fix WG003 - External requirement number missing. Set IDoc number

WG003 - Overview

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 003

• Message text: External requirement number missing. Set IDoc number

What causes this issue?

The order number of the system sending the message is missing.

System Response

No order confirmation can be made without an order number.
An internal number was created using the IDoc number.

How to fix this error?

Check the orders received. The field in question must be filled.

Error message extract from SAP system. Copyright SAP SE.

WG003 - Details

• Certainly! Here's a detailed explanation for the SAP error message WG003 - External requirement number missing. Set IDoc number:
  
  Error Message:
  WG003 - External requirement number missing. Set IDoc number
  
  
  Cause:
  This error occurs during the processing of a goods movement or delivery document in SAP when the system expects an external requirement number (often related to an IDoc number or a reference number from an external system) but it is missing or not provided.
  
  The external requirement number is typically used to link the SAP document with an external system or process.
  In many cases, this happens during the creation or processing of an outbound delivery or goods issue when the system is configured to require an external reference.
  The system expects an IDoc number or an external reference number to be set in the document, but it is not found.
  
  
  When does it occur?
  
  During delivery processing (VL01N, VL02N, VL10B, etc.)
  When posting goods issue or inbound/outbound deliveries.
  When