How To Fix BK128 - Activity type & is not allowed for business transaction &

SAP Error Message - Details

• Message type: E = Error

• Message class: BK - Create, Display, Reverse Controlling Document

• Message number: 128

• Message text: Activity type & is not allowed for business transaction &

What causes this issue?

In business transaction &V2& you entered activity type &V1&, category
&V3&. This category is <LS>not</> allowed in business transaction &V2&.

System Response

You can use only activity types of given categories in a given business
transaction.
The following activity type categories are valid for a given business
transaction:

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

<ZH>RKL</> (Direct Activity Allocation):
Category 1 (manual entry, manual allocation)
<ZH>RKN</>, <ZH>RKIL</> (Indirect Activity Allocation):
Category 3 (manual entry, indirect allocation)
Category 4 (manual entry, no allocation)
<ZH>RKLT</> (Template Allocation Actual):
Category 1 (manual entry, manual allocation)
Category 2 (indirect calculation, indirect allocation)
<ZH>RKPS</> (Template Allocation Plan):
Category 1 (manual entry, manual allocation)
Category 2 (indirect calculation, indirect allocation)
<ZH>Note</>
You can post category 2 (indirect calculation, indirect allocation) and
category 5 (calculation and allocation using target=actual activity
allocation) activity types
<ZH>manually</> only if the indicator <LS>Manual actual quantity</> is
set in the activity type master data.
If this indicator is set for an activity type of category 1, 2 or 5,
you can post the activity types in the same posting transaction (entry
of sender activities) and together with activity type categories
3 and 4.

How to fix this error?

Enter an activity type with a category valid for business transaction
&V2&.
<ZH>Note</>
If you have not yet carried out <ZH>any</> postings in actual or plan,
you can overwrite the activity type category defined in the activity
type master record <ZH>in planning</>.
This activity type category is then valid for the entire fiscal year in
both actual and plan. Making a change to master data at a later date
affects the <ZH>current</> fiscal year and therefore <ZH>not</> the
current posting.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BK128 - Activity type & is not allowed for business transaction & ?

  The SAP error message BK128 typically indicates that there is an issue with the activity type being used in a business transaction. This error can occur in various contexts, such as during the posting of costs or during the execution of certain transactions in the Controlling (CO) module.
  Cause:
  The error message BK128 can be triggered by several factors, including:
  
  Invalid Activity Type: The activity type specified in the transaction is not valid for the business transaction being executed.
  Configuration Issues: The activity type may not be properly configured in the system, or it may not be assigned to the relevant cost center or internal order.
  Business Transaction Restrictions: Certain business transactions may have restrictions on which activity types can be used.
  Missing Authorizations: The user may not have the necessary authorizations to use the specified activity type.
  
  Solution:
  To resolve the BK128 error, you can take the following steps:
  
  
  Check Activity Type: Verify that the activity type you are trying to use is valid for the business transaction. You can do this by checking the configuration in the SAP system.
  
  
  Review Configuration:
  
  Go to the configuration settings for the activity type in the SAP system (Transaction code: OKA0 or OKKP).
  Ensure that the activity type is assigned to the correct cost center or internal order.
  Check if the activity type is marked as "active" and is allowed for the specific business transaction.
  
  
  
  Consult Documentation: Review the SAP documentation or help files related to the specific business transaction you are working with to understand any restrictions on activity types.
  
  
  Check Authorizations: Ensure that the user executing the transaction has the necessary authorizations to use the specified activity type. This may involve checking user roles and permissions.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may 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 OKA0 (Activity Types) and OKKP (Control Parameters for Activity Types).
  SAP Notes: Search for SAP Notes related to error BK128 in the SAP Support Portal, as there may be specific patches or updates that address this issue.
  User Forums: Consider checking SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the BK128 error and implement a solution to resolve it.