How To Fix WM121 - Classif.: material and assortment do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 121

• Message text: Classif.: material and assortment do not match

What causes this issue?

The check for classifying parameters shows a difference between the
material and the assortment owner.

How can this happen?

Characteristic Value - material Value - assortment owner
**********************************************************************
SIZE 12 No characteristic
COLOR Red Ditto
STYLING Fashionable <----------> Classic (difference!)

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

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 WM121 - Classif.: material and assortment do not match ?

  The SAP error message WM121 ("Classif.: material and assortment do not match") typically occurs in the Warehouse Management (WM) module when there is a mismatch between the material classification and the assortment in the system. This can happen during various processes, such as goods movements, stock transfers, or inventory management.
  Causes:
  
  Material Classification Issues: The material may not be properly classified in the system, or the classification does not match the expected assortment.
  Assortment Configuration: The assortment configuration may not be set up correctly, leading to a mismatch with the material being processed.
  Master Data Inconsistencies: There may be inconsistencies in the master data for the material or the assortment, such as incorrect settings or missing entries.
  Warehouse Configuration: The warehouse settings may not align with the material or assortment definitions, causing the system to reject the transaction.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Go to the material master record and verify the classification data. Ensure that the material is assigned to the correct assortment.
  Use transaction code MM03 to display the material master and check the relevant views.
  
  
  
  Review Assortment Configuration:
  
  Check the assortment configuration in the system to ensure it is set up correctly. This can be done using transaction codes like OMIY or OMIZ depending on your configuration.
  Ensure that the assortment includes the material in question.
  
  
  
  Correct Master Data:
  
  If there are inconsistencies in the master data, correct them. This may involve updating the material master or assortment settings.
  Ensure that all relevant fields are filled out correctly and that there are no missing entries.
  
  
  
  Check Warehouse Settings:
  
  Review the warehouse management settings to ensure they are compatible with the material and assortment.
  Use transaction code SPRO to access the configuration settings and verify the warehouse setup.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for additional guidance on the specific error message and related configuration settings.
  
  
  
  Testing:
  
  After making changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), OMIY (Assortment Configuration), and SPRO (Customizing).
  SAP Notes: Check for any SAP Notes related to this error message for additional troubleshooting steps or patches.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to make changes to material and assortment data.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Warehouse Management.