How To Fix WW104 - Assignment of & cannot be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 104

• Message text: Assignment of & cannot be deleted

What causes this issue?

You want to delete an existing assignment to a material group. This is
prohibited as long as value-only materials are still assigned in the
plant master/material group master.

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?

Delete all value-only material assignments from the corresponding
plant/material group assignment(s).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW104 - Assignment of & cannot be deleted ?

  The SAP error message WW104 ("Assignment of & cannot be deleted") typically occurs in the context of work center assignments, production orders, or similar scenarios where a specific assignment cannot be removed due to various constraints or dependencies.
  Cause:
  
  Dependencies: The assignment you are trying to delete may be linked to other objects or processes that prevent its removal. For example, if the assignment is part of an active production order or is being referenced in a planning scenario, it cannot be deleted.
  Status of the Object: The object (e.g., work center, production order) may be in a status that does not allow for changes or deletions. For instance, if the production order is already released or completed, certain assignments may be locked.
  Authorization Issues: The user may not have the necessary permissions to delete the assignment, leading to this error message.
  Data Integrity Constraints: SAP enforces data integrity rules that may prevent the deletion of assignments if it would lead to inconsistencies in the data.
  
  Solution:
  
  Check Dependencies: Review the dependencies of the assignment you are trying to delete. Ensure that there are no active processes or linked objects that would prevent the deletion.
  Change Status: If the object is in a status that prevents deletion, consider changing its status (if applicable) to allow for the deletion. For example, if it’s a production order, you may need to set it back to a status that allows changes.
  Review Authorizations: Ensure that you have the necessary authorizations to perform the deletion. If not, contact your SAP administrator to grant the required permissions.
  Consult Documentation: Check SAP documentation or help resources for specific guidelines related to the object you are working with. There may be specific procedures or prerequisites for deleting assignments.
  Use Transaction Codes: Utilize relevant transaction codes (like CO02 for production orders) to check the status and dependencies of the object before attempting to delete the assignment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to the object you are working with (e.g., CO01, CO02 for production orders, CR01 for work centers).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal 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.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.