How To Fix KK601 - Internal error: Transaction type & invalid

KK601 - Overview

• Message type: E = Error

• Message class: KK -

• Message number: 601

• Message text: Internal error: Transaction type & invalid

What causes this issue?

Because of an internal error, the &v1& of the cost estimate was not
possible.

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?

Please inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KK601 - Internal error: Transaction type & invalid ?

  The SAP error message KK601, which states "Internal error: Transaction type & invalid," typically occurs in the context of controlling (CO) transactions, particularly when dealing with internal orders, cost centers, or other controlling-related activities. This error indicates that the system has encountered an issue with the transaction type being used in the process.
  Causes:
  
  Invalid Transaction Type: The transaction type specified in the transaction is not recognized by the system. This could be due to a typo or an incorrect configuration.
  
  Configuration Issues: The transaction type may not be properly configured in the system. This could involve missing settings in the controlling area or the transaction type itself.
  Authorization Issues: The user may not have the necessary authorizations to use the specified transaction type.
  System Bugs: Occasionally, this error can arise from bugs or inconsistencies in the SAP system, especially if there have been recent updates or changes.
  
  Solutions:
  
  Check Transaction Type: Verify that the transaction type