How To Fix KO170 - Enter a cost element (category 21)

KO170 - Overview

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 170

• Message text: Enter a cost element (category 21)

What causes this issue?

For allocation to cost center, the settlement cost element must be of
type 21 (internal order settlement). Cost element &v1& is not of this
type.

How to fix this error?

Enter a valid cost element of type 21, or remove your entry.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

KO170 - Details

• The SAP error message KO170, which states "Enter a cost element (category 21)," typically occurs in the context of controlling (CO) when you are trying to post a transaction that requires a cost element but none has been specified. This error is common when dealing with internal orders, cost centers, or other CO-related transactions.
  
  Cause:
  The error is triggered when:
  
  A cost element is required for the transaction, but it has not been entered.
  The system expects a cost element of category 21 (which is typically used for internal activity allocation).
  The configuration of the cost element or the internal order may not be set up correctly.
  
  
  Solution:
  To resolve the KO170 error, you can take the following steps:
  
  
  Enter a Cost Element: 
  
  Ensure that you are entering a valid cost element in the relevant field. This should be a cost element of category 21.
  
  
  
  Check Configuration:
  
  Verify that the cost element you are trying to use is correctly configured