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

SAP Error Message - Details

• 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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 settings.
  
  
  
  Change Cost Object Category:
  
  If the cost object is indeed assigned to another category, you may need to change the category of the existing assignment or the new cost object you are trying to assign.
  
  
  
  Review Configuration:
  
  Go to the configuration settings in the SAP system (transaction code SPRO) and check the settings for cost object categories. Ensure that the categories are set up correctly and that there are no restrictions preventing the assignment.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to cost object categories for any specific guidelines or restrictions.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. They can provide insights based on the specific configuration and version of your SAP system.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KSB1, KOB1, OKB9, and OKB2 for managing cost objects and their categories.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to cost object assignments.
  
  By following these steps, you should be able to identify the cause of the KQ810 error and implement a solution to resolve it.