How To Fix WV280 - External supplier &1 is not a permitted source of supply

WV280 - Overview

• Message type: E = Error

• Message class: WV - Messages about Sales Price Calculation

• Message number: 280

• Message text: External supplier &1 is not a permitted source of supply

What causes this issue?

The source of supply check has found that the external vendor &V1& is
not a valid source of supply.
The current source of supply key "&V3&" (external procurement before
internal procurement) checks the external vendor entered first. If this
is not valid, the source of supply determination function searches for
internal vendors. This check did not find a vendor for material &V2&.

System Response

No calculation can be performed for material &V2&.

How to fix this error?

Check the settings that are relevant for supply source determination,
such as the source of supply key, the purchasing info records if using
external procurement, the supplying sites if using internal
procurement, and so on.
Links for checking master data and Customizing:
<DS:TRAN.MM43>Display Material Master Data</>
<DS:TRAN.ME1M>Info Records - List Display</>
<DS:TRAS.WB03>Display Plant</>
<DS:TRAN.MK03>Display Vendor</>
<DS:SIMG.SIMG_CFMENUSAPCOMKJ>Reference Purchasing Organization</>

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WV280 - External supplier &1 is not a permitted source of supply ?

  The SAP error message WV280 indicates that the external supplier specified in a transaction is not recognized as a permitted source of supply for the material or service being procured. This error typically arises in the context of procurement processes, such as when creating purchase orders or purchase requisitions.
  
  Cause:
  
  Supplier Not Approved: The supplier may not be approved or set up in the system as a valid source for the specific material or service.
  Material-Supplier Relationship: The relationship between the material and the supplier may not be established in the system. This can happen if the supplier is not assigned to the material in the purchasing info record.
  Purchasing Organization Settings: The purchasing organization may not have the necessary authorizations or settings to procure from the specified supplier.
  Vendor Blocked: The vendor may be blocked for purchasing transactions in the system.
  Incorrect Configuration: There may be configuration issues in the purchasing module that prevent the