How To Fix KQ810 - Cost object category & already used for another category

KQ810 - Overview

• Message type: E = Error

• Message class: KQ - Error Messages for Customizing Product Costing

• Message number: 810

• Message text: Cost object category & already used for another category

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KQ810 - Cost object category & already used for another category ?

  The SAP error message KQ810 indicates that a cost object category is already in use for another category, which typically occurs when you are trying to assign a cost object (like a cost center, internal order, or project) to a category that is already assigned to a different cost object. This can happen in various SAP modules, particularly in Controlling (CO).
  
  Cause:
  
  Duplicate Assignment: The cost object category you are trying to use is already assigned to another cost object.
  
  Configuration Issues: There may be configuration settings in the system that prevent the assignment of the cost object to multiple categories.
  Data Integrity: The system is designed to maintain data integrity, and this error is a safeguard against incorrect assignments.
  
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction codes like KOB1 (for orders) or KSB1 (for cost centers) to check if the cost object is already assigned to another category.
  Review the cost object assignments in the relevant configuration