How To Fix WP123 - Supplier material & is unknown

WP123 - Overview

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 123

• Message text: Supplier material & is unknown

What causes this issue?

The supplier material number &V1& does not exist in the system.

System Response

The system was unable to post any goods movement for the number.

How to fix this error?

Create a supplier material number for the material and supplier in the
system, or create the goods movement using a different supplier material
number.

Error message extract from SAP system. Copyright SAP SE.

WP123 - Details

• The SAP error message WP123, which states "Supplier material & is unknown," typically occurs in the context of procurement or inventory management when the system cannot find a specific material associated with a supplier in the system. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Material Not Created: The material in question has not been created in the system.
  Incorrect Material Number: The material number entered may be incorrect or misspelled.
  Supplier Not Assigned: The supplier may not be assigned to the material in the vendor master data.
  Data Inconsistency: There may be inconsistencies in the data between the material master and vendor master records.
  Inactive Material: The material may be inactive or flagged for deletion in the system.
  Missing Purchasing Info Record: There may be no purchasing info record for the supplier and material combination.
  
  Solutions:
  
  Check Material Master: Verify that the material exists in the material master (transaction