How To Fix WM451 - Assortment no. & has already been used for a customer of a retail plant

WM451 - Overview

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 451

• Message text: Assortment no. & has already been used for a customer of a retail plant

What causes this issue?

You wish to create a new assortment. The assortment number has,
however, already been used as a retail plant number.

System Response

The system will not allow you to use the same number.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM451 - Assortment no. & has already been used for a customer of a retail plant ?

  The SAP error message WM451 indicates that an assortment number has already been assigned to a customer in a retail plant, which prevents further assignments or modifications. This error typically arises in the context of warehouse management (WM) and retail processes within SAP.
  
  Cause:
  
  Duplicate Assignment: The assortment number you are trying to assign has already been linked to a customer in the system.
  Data Integrity: SAP enforces data integrity rules to prevent the same assortment from being used for multiple customers, which could lead to confusion in inventory management and sales processes.
  
  Configuration Issues: There may be configuration settings in the system that restrict the use of certain assortments based on business rules.
  
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction codes like SE16 or SE11 to check the database tables (e.g., KNA1, KNA2, or KONV) for existing assignments of the assortment number to customers.
  Identify the customer that is currently using the assortment number.
  
  
  
  Modify or Remove Assignment:
  
  If