How To Fix ID539 - Class type cannot be changed within a transaction

ID539 - Overview

• Message type: E = Error

• Message class: ID - PM (IPRT) print messages, (IBIP) batch input messages

• Message number: 539

• Message text: Class type cannot be changed within a transaction

What causes this issue?

The class system does not allow the class type to be changed within a
transaction.

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?

For each class type, you must use specific transaction.
<DS:RE.RIIBIP00>See general data transfer documentation</>

Error message extract from SAP system. Copyright SAP SE.

ID539 - Details

• The SAP error message ID539, which states "Class type cannot be changed within a transaction," typically occurs when there is an attempt to change the class type of an object (like a class or an interface) while a transaction is already in progress. This is not allowed in SAP because class types are fundamental definitions that should remain consistent during the execution of a transaction.
  
  Cause:
  
  Transaction Context: The error arises when you try to change the class type of an object (e.g., from a local class to a global class or vice versa) while a transaction is active.
  Inconsistent State: Changing class types can lead to inconsistencies in the system, which is why SAP restricts this action during an active transaction.
  Development Environment: This error is often encountered in the ABAP development environment when modifying class definitions.
  
  
  Solution:
  
  End the Transaction: If you are in the middle of a transaction, you need to complete or