How To Fix KL021 - Activity type &1 is not allowed for cost center &2

KL021 - Overview

• Message type: E = Error

• Message class: KL - Valuation Function Modules: Activity Allocation

• Message number: 021

• Message text: Activity type &1 is not allowed for cost center &2

What causes this issue?

You want to use cost center &V2& together with activity type &V1&. For
this combination, no master record has been created in any fiscal year
up to now. Such a master record is defined within Cost Center
Accounting by means of the activity type planning function.

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?

Create the master record
<DS:TRAN.KP26>Carry out activity type planning</>
or check your entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KL021 - Activity type &1 is not allowed for cost center &2 ?

  The SAP error message KL021 indicates that the specified activity type is not allowed for the given cost center. This error typically arises in the context of cost accounting and activity allocation within SAP, particularly when trying to post or allocate costs to a cost center using an activity type that is not configured for that cost center.
  
  Cause:
  
  
  Configuration Issues: The activity type may not be assigned to the cost center in the controlling area.
  Master Data Inconsistencies: The cost center or activity type may not be properly set up in the system.
  Activity Type Status: The activity type might be inactive or not available for the specified period.
  Cost Center Type: The cost center may not be of the type that allows the use of the specified activity type.
  
  
  Solution:
  
  
  Check Activity Type Assignment:
  
  Go to the configuration settings in SAP (Transaction code: OKA2).
  Verify that the activity type is assigned to the relevant cost center in