How To Fix WSOS007 - Supply source key for material & and plant & not found

WSOS007 - Overview

• Message type: E = Error

• Message class: WSOS - Retail Supply Source Determination

• Message number: 007

• Message text: Supply source key for material & and plant & not found

What causes this issue?

The system cannot determine the supply source key for material & and
plant &.

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?

Maintain the supply source key in the plant data for the material or in
the general material data.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

WSOS007 - Details

• Certainly! Here's a detailed explanation for the SAP error message WSOS007: "Supply source key for material & and plant & not found":
  
  Error Message
  WSOS007: Supply source key for material & and plant & not found
  
  Cause
  This error occurs when the system tries to determine the supply source for a material in a specific plant but cannot find any valid supply source key (also known as source list entry) for that material and plant combination.
  In SAP, the source list defines approved sources of supply for a material in a plant. If the system is configured to check the source list during procurement or production processes, and no valid source is found, this error is triggered.
  Common scenarios causing this error:
  
  No source list entry exists for the material and plant.
  The source list entry exists but is not valid for the current date (validity period expired or not yet valid).
  The source list entry is blocked or