How To Fix WRF_WSUBST028 - No valid supply source: material &1, receiving plant &2

WRF_WSUBST028 - Overview

• Message type: E = Error

• Message class: WRF_WSUBST - Article Substitution: Messages Central Determination Logic

• Message number: 028

• Message text: No valid supply source: material &1, receiving plant &2

What causes this issue?

This may be for one of the following reasons:
There is a locked source list entry for the material and supplying plant
Missing or invalid (validity period) supplying plant relationship
between receiving and issuing plants

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 source list or the supplying plant relationship.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_WSUBST028 - No valid supply source: material &1, receiving plant &2 ?

  The SAP error message WRF_WSUBST028 indicates that there is no valid supply source for a specific material in a designated receiving plant. This error typically arises in the context of materials management and supply chain processes, particularly when trying to create or process a purchase order, stock transfer, or similar transaction.
  Causes:
  
  
  Missing Source of Supply: The material may not have a valid source of supply defined in the system for the specified receiving plant. This could be due to missing vendor information or a lack of purchasing info records.
  
  
  Incorrect Plant or Material Configuration: The material may not be set up correctly for the receiving plant, or the plant may not be assigned to the material in the material master data.
  
  
  Inactive or Blocked Vendors: The vendor associated with the material may be inactive or blocked, preventing the system from recognizing it as a valid supply source.
  
  
  Invalid or Missing Purchase Info Records: There