How To Fix WM308 - Old and new assortment grades do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 308

• Message text: Old and new assortment grades do not match

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WM308 - Old and new assortment grades do not match ?

  The SAP error message WM308 ("Old and new assortment grades do not match") typically occurs in the context of warehouse management when there is an attempt to change the assortment grade of a material or product, but the old and new grades do not align according to the system's requirements.
  Cause:
  
  Mismatch of Assortment Grades: The error indicates that the assortment grade currently assigned to the material does not match the new assortment grade being assigned. This could happen if the material has been previously assigned a specific assortment grade that is incompatible with the new one.
  Configuration Issues: There may be configuration settings in the system that define how assortment grades are managed, and these settings may not allow for the change being attempted.
  Data Integrity Issues: There could be inconsistencies in the master data related to the material or product, leading to this error when trying to update or change the assortment grade.
  
  Solution:
  
  Verify Assortment Grades: Check the current assortment grade assigned to the material and compare it with the new assortment grade you are trying to assign. Ensure that they are compatible.
  Update Master Data: If necessary, update the master data for the material to ensure that the assortment grades are correctly defined and aligned.
  Consult Configuration Settings: Review the configuration settings in the SAP system related to assortment grades. Ensure that the settings allow for the changes you are trying to make.
  Use Transaction Codes: Utilize relevant transaction codes (like MM02 for material master changes) to make the necessary adjustments to the material's assortment grade.
  Check for Dependencies: Investigate if there are any dependencies or restrictions in the system that prevent the change of assortment grades. This may involve checking related materials or product hierarchies.
  
  Related Information:
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on assortment grades and their management within the Warehouse Management module.
  Transaction Codes: Familiarize yourself with transaction codes related to material management (MM) and warehouse management (WM) for efficient navigation and troubleshooting.
  User Exits and BAdIs: If the issue persists, consider checking for any user exits or Business Add-Ins (BAdIs) that may be influencing the behavior of assortment grades in your specific implementation.
  Support from SAP Community: Engage with the SAP community forums or consult with SAP support for additional insights or similar cases that may provide further guidance.
  
  By following these steps, you should be able to identify the cause of the WM308 error and implement a solution to resolve it.