How To Fix KM206 - You can maintain material numbers which have already been assigned.

SAP Error Message - Details

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 206

• Message text: You can maintain material numbers which have already been assigned.

How to fix this error?

If you select this field, the system will also display the material
numbers that are already assigned to a profit center in that plant. You
can then change these assignments if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KM206 - You can maintain material numbers which have already been assigned. ?

  The SAP error message KM206 indicates that you are trying to maintain or change material numbers that have already been assigned to a specific object or process in the system. This typically occurs in the context of material master data management, where certain materials are locked or restricted from being modified due to their current assignments.
  
  Cause:
  
  Material Assignment: The material number you are trying to maintain is already assigned to a transaction, document, or another object in the system (e.g., purchase orders, sales orders, stock movements).
  Status of Material: The material may be in a status that does not allow changes (e.g., blocked, inactive).
  Authorization Issues: You may not have the necessary permissions to make changes to the material.
  System Configuration: Certain configurations in the system may restrict changes to materials that are already assigned.
  
  
  Solution:
  
  Check Assignments: Review the assignments of the material number in question. You can use transaction codes like MM03 (Display Material)