How To Fix GA133 - Sender activity type may not be "initial".

SAP Error Message - Details

• Message type: E = Error

• Message class: GA - Allocations

• Message number: 133

• Message text: Sender activity type may not be "initial".

What causes this issue?

You have used the initial value to define your sender activity types in
your indirect activity allocation cycle.

System Response

This is not a valid sender. It is ignored in indirect activity
allocation.

How to fix this error?

Change the definition of your sender activity types so that the initial
value does not reappear.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GA133 - Sender activity type may not be "initial". ?

  The SAP error message GA133, which states "Sender activity type may not be 'initial'," typically occurs in the context of controlling (CO) and specifically when dealing with activity types in cost centers or internal orders. This error indicates that the system is expecting a valid activity type to be specified, but it has encountered an "initial" or empty value instead.
  Cause:
  
  Missing Activity Type: The activity type field is left blank or not properly filled in the transaction or configuration.
  Incorrect Configuration: The configuration for the cost center or internal order may not be set up correctly, leading to the system not recognizing the activity type.
  Data Entry Error: A user may have inadvertently entered an incorrect value or failed to enter a value in the required field.
  
  Solution:
  
  Check Activity Type: Ensure that a valid activity type is entered in the relevant field. This can usually be done in the transaction where the error occurs (e.g., when posting costs or creating a plan).
  Review Configuration: Go to the configuration settings for the controlling area, cost center, or internal order to ensure that the activity types are correctly defined and assigned.
  Data Validation: Validate the data being entered to ensure that all required fields are filled out correctly. If using a template or mass upload, check for any missing values.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the activity types relevant to your business processes.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may be using transaction codes like KP06 (for planning), KSB1 (for actual line items), or KOB1 (for order line items).
  Activity Type Master Data: You can check the activity type master data in the SAP system using transaction code KA01 (Create Activity Type) or KA02 (Change Activity Type).
  Authorization Issues: Ensure that the user has the necessary authorizations to access and modify the relevant data.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  
  By following these steps, you should be able to resolve the GA133 error and ensure that valid activity types are being used in your SAP transactions.