How To Fix WG046 - Supplier & entered = supplying plant &. This is not allowed

WG046 - Overview

• Message type: E = Error

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

• Message number: 046

• Message text: Supplier & entered = supplying plant &. This is not allowed

What causes this issue?

The specified supplier & is not an external supplier.
Purchase orders for goods receipts may only be created if the supplier
is an external supplier.

System Response

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

How to fix this error?

Check why the purchase order does not already exist in the supplying
plant.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WG046 - Supplier & entered = supplying plant &. This is not allowed ?

  SAP Error Message:
  WG046 - Supplier & entered = supplying plant &. This is not allowed
  
  
  Cause:
  This error occurs when the supplier entered in a purchasing document (such as a Purchase Order or Scheduling Agreement) is the same as the supplying plant. In SAP, the system does not allow the supplier and the supplying plant to be identical because it contradicts the business logic of procurement processes. Typically, the supplier is an external vendor, while the supplying plant is an internal plant that supplies materials.
  In other words, the system expects that the supplier is a vendor (external party), and the supplying plant is an internal plant. If both are the same, it indicates a configuration or master data issue.
  
  When does it occur?
  
  When creating or changing a purchasing document (PO, scheduling agreement, etc.) where the supplier number entered is the same as the supplying plant number.
  When the vendor master and plant master data