How To Fix WPSOR004 - Task list &1: no conversion rule found for work center &2

WPSOR004 - Overview

• Message type: E = Error

• Message class: WPSOR - Order Reallocation

• Message number: 004

• Message text: Task list &1: no conversion rule found for work center &2

What causes this issue?

The system tried to create an order for main work center &V3& from task
list &V1&. No conversion was found for work center &V2& (valid from
&V4&).

System Response

The system cannot convert the work center. The order creation process
was canceled.

How to fix this error?

Maintain a conversion rule with transaction <LS>mebor</>.

Error message extract from SAP system. Copyright SAP SE.

WPSOR004 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPSOR004 Task list &1: no conversion rule found for work center &2
  
  Meaning / 
  Cause:
  This error occurs during the conversion or migration of task lists (e.g., from an older system or during a system upgrade) when the system tries to convert or map a work center but cannot find a corresponding conversion rule for the specified work center.
  
  Task list &1: The task list number or identifier being processed.
  Work center &2: The work center for which no conversion rule exists.
  
  In other words, the system is trying to convert or interpret the work center data in the task list, but there is no defined rule or mapping that tells the system how to handle this particular work center during the conversion process.
  
  When does this occur?
  
  During system upgrades or migrations involving task lists.
  When using conversion tools or programs that require mapping old work