How To Fix SY450 - You can only use commit and rollback in test clients

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 450

• Message text: You can only use commit and rollback in test clients

What causes this issue?

You are <ZH>not</> in a test client. You therefore cannot use the
"Commit" and "Rollback" functions in the Debugger, since they could
lead to inconsistencies in the database.

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?

If the client in which you are working should be a test client, you can
have the corresponding table changes made (table T000, field
CCATEGORY).

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SY450 - You can only use commit and rollback in test clients ?

  The SAP error message SY450 indicates that you are trying to use the COMMIT WORK or ROLLBACK WORK statements in a test client. In SAP, test clients (usually clients with a number between 000 and 099) are designed for testing purposes and do not allow database changes to be committed or rolled back. This restriction is in place to ensure that test data remains consistent and unaltered during testing activities.
  Cause:
  The error occurs when:
  
  You are executing a program or transaction that includes COMMIT WORK or ROLLBACK WORK statements in a test client.
  The system is configured to prevent any database changes in test clients to maintain data integrity.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Client: Ensure that you are working in a productive or development client (usually clients numbered 100 and above) where database changes are allowed.
  
  
  Modify the Code: If you are developing or testing code that includes COMMIT WORK or ROLLBACK WORK statements, consider removing these statements when running in a test client. You can implement conditional logic to check the client number and bypass these statements in test clients.
  Example:
  IF sy-mandt >= '100'.
      COMMIT WORK.
  ENDIF.
  
  
  Use a Different Client: If you need to test functionality that requires database changes, switch to a development or quality assurance client where you have the necessary permissions to perform commits.
  
  
  Consult Documentation: Review SAP documentation or consult with your SAP Basis team for best practices regarding client usage and data management in test environments.
  
  
  Related Information:
  
  Client Types: Understand the different types of clients in SAP (e.g., Development, Quality Assurance, Production) and their purposes.
  Transport Management: Familiarize yourself with the transport management system in SAP, which allows you to move changes between different clients.
  Testing Best Practices: Follow best practices for testing in SAP environments, including using dedicated test clients and ensuring data integrity.
  
  By following these steps, you should be able to resolve the SY450 error and continue your work in SAP without issues.