How To Fix WP101 - Material & unkown in system

WP101 - Overview

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 101

• Message text: Material & unkown in system

What causes this issue?

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

System Response

The system could not post a goods movement for the material.

How to fix this error?

<DS:TRAN.MM41>Create the material in the system</>, or create the
goods movement using a different material number.

Error message extract from SAP system. Copyright SAP SE.

WP101 - Details

• The SAP error message WP101, which states "Material & unknown in system," typically indicates that the system is unable to recognize a material number that has been entered or referenced in a transaction. This can occur in various contexts, such as during the creation of a production order, goods movement, or inventory management.
  Causes:
  
  Material Not Created: The material number has not been created in the system.
  Material Deactivated: The material exists but has been marked as inactive or deleted.
  Incorrect Material Number: The material number entered may contain typographical errors or may not exist in the specified plant or storage location.
  Authorization Issues: The user may not have the necessary authorizations to view or use the material.
  Data Synchronization Issues: If the system is integrated with other systems (like a legacy system), there may be synchronization issues leading to the material not being recognized.
  
  Solutions:
  
  
  Check Material Existence:
  
  Use transaction code MM03 to check if the material exists