How To Fix WM443 - Change material: module can only be deleted in module maintenance

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 443

• Message text: Change material: module can only be deleted in module maintenance

What causes this issue?

At present you can only delete modules from the assignment if they have
been newly-included and not yet saved.
The only way to remove materials from modules that have already been
permanently assigned is to use the transactions in module maintenance.

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?

Use these transactions.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM443 - Change material: module can only be deleted in module maintenance ?

  The SAP error message WM443 ("Change material: module can only be deleted in module maintenance") typically occurs in the context of Warehouse Management (WM) when you attempt to delete or change a material that is associated with a specific module in the system. This error indicates that the material cannot be modified or deleted directly through the transaction you are using, and instead, it must be handled through module maintenance.
  Cause:
  
  Module Association: The material you are trying to change or delete is linked to a specific module or process in the Warehouse Management system.
  System Restrictions: SAP has built-in restrictions to prevent changes that could disrupt the integrity of the warehouse processes or data.
  Transaction Context: You may be using a transaction that does not allow for the deletion or modification of materials in the current context.
  
  Solution:
  
  
  Use Module Maintenance: To resolve this error, you need to access the module maintenance transaction. This is typically done through transaction codes like WM01 (for creating a new module) or WM02 (for changing an existing module). You will need to navigate to the specific module that the material is associated with and make the necessary changes there.
  
  
  Check Material Status: Ensure that the material is not in use or locked by any ongoing processes. If it is, you may need to wait until those processes are completed before attempting to delete or change the material.
  
  
  Consult Documentation: Review the SAP documentation or help files related to Warehouse Management for specific instructions on how to manage materials and modules.
  
  
  Authorization: Ensure that you have the necessary authorizations to perform changes in module maintenance. If you do not have the required permissions, contact your SAP administrator.
  
  
  Contact Support: If you are unsure about the changes you need to make or if the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP WM, such as WM01, WM02, WM03, etc.
  SAP Notes: Check for any SAP Notes related to WM443 for additional insights or updates that may address this issue.
  Training: Consider training sessions or resources on SAP WM to better understand how to manage materials and modules effectively.
  
  By following these steps, you should be able to resolve the WM443 error and manage your materials appropriately within the SAP system.