How To Fix WM284 - Ref. plant for distribution centers is incorrect (different mat. data)

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 284

• Message text: Ref. plant for distribution centers is incorrect (different mat. data)

What causes this issue?

You attempted to maintain a template plant for a distribution center
for which inconsistent material data exists.

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?

Enter a reference plant for a distribution center that does not have
inconsistent material data.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM284 - Ref. plant for distribution centers is incorrect (different mat. data) ?

  The SAP error message WM284 ("Ref. plant for distribution centers is incorrect (different mat. data)") typically occurs in the Warehouse Management (WM) module when there is a mismatch in the material data related to the reference plant for a distribution center. This can happen during various processes, such as stock transfers, inventory management, or when trying to create or manage warehouse tasks.
  Cause:
  
  Material Master Data Issues: The material master data for the material in question may not be consistent across different plants. This includes discrepancies in the reference plant settings.
  Plant Assignment: The material may not be assigned to the correct reference plant in the material master.
  Configuration Issues: There may be configuration issues in the WM settings that lead to inconsistencies in how materials are handled across different plants.
  Data Migration Issues: If data was migrated from another system, there may be inconsistencies in the material data that were not resolved during the migration process.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the data for the material in question across the relevant plants.
  Ensure that the reference plant is correctly assigned and that the data is consistent.
  
  
  
  Verify Plant Assignment:
  
  Ensure that the material is assigned to the correct reference plant in the material master.
  Check the "Plant Data / Storage" view to confirm that the reference plant is set correctly.
  
  
  
  Review WM Configuration:
  
  Check the Warehouse Management configuration settings to ensure that they are set up correctly for the distribution center and the materials being used.
  Ensure that the warehouse number and storage types are correctly configured.
  
  
  
  Data Consistency Check:
  
  Run consistency checks in the system to identify any discrepancies in the material data.
  Use transaction codes like SLG1 (Application Log) to check for any related logs that might provide more context on the error.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to WM284 for any specific guidance or patches that may address the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), WM01 (Warehouse Management Monitor), SLG1 (Application Log).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  User Forums: Consider checking SAP community forums or user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the cause of the WM284 error message in SAP.