How To Fix WM120 - MatGr / assortment grade: material and assortment do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 120

• Message text: MatGr / assortment grade: material and assortment do not match

What causes this issue?

You can define which material groups are allowed in which assortment
grade for the assortment owner.

System Response

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

How to fix this error?

Choose a different assortment grade, or expand the master data for the
assortment owner, or use another listing procedure, or skip this error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM120 - MatGr / assortment grade: material and assortment do not match ?

  The SAP error message WM120, which states "MatGr / assortment grade: material and assortment do not match," typically occurs in the Warehouse Management (WM) module when there is a mismatch between the material group (MatGr) and the assortment grade assigned to a material. This can happen during various processes, such as goods movements, stock transfers, or inventory management.
  Cause:
  
  Mismatch in Configuration: The material group assigned to the material does not correspond to the assortment grade defined in the system. This can happen if the material was incorrectly classified or if the assortment grades were not properly set up in the system.
  Data Entry Errors: Incorrect data entry during the creation or modification of materials or assortment grades can lead to this error.
  Master Data Issues: The material master data may not be correctly maintained, leading to inconsistencies between the material group and assortment grade.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and verify the material group assigned to the material.
  Ensure that the assortment grade is correctly defined for that material group.
  
  
  
  Review Assortment Grades:
  
  Check the configuration of assortment grades in the system (transaction code SPRO) to ensure that they are correctly set up and linked to the appropriate material groups.
  
  
  
  Correct Data Entry:
  
  If the error is due to incorrect data entry, correct the material master data or assortment grade as necessary. This may involve changing the material group or updating the assortment grade.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or guidelines for setting up materials and assortment grades in your organization to ensure compliance with business rules.
  
  
  
  Testing:
  
  After making changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  SPRO: Customizing (to access configuration settings)
  
  
  
  Material Group and Assortment Grade:
  
  Material groups are used to classify materials for reporting and inventory management purposes.
  Assortment grades are often used in retail and distribution to categorize products based on specific criteria.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  
  
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to make changes to material master data and assortment grades.
  
  
  By following these steps, you should be able to resolve the WM120 error and ensure that your material and assortment grade configurations are aligned correctly.