How To Fix TG421 - Use this report only as user 'DDIC'

TG421 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 421

• Message text: Use this report only as user 'DDIC'

What causes this issue?

The report may only be executed by user DDIC.

System Response

Report was terminated.

How to fix this error?

Please only use this report during an upgrade.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TG421 - Use this report only as user 'DDIC' ?

  The SAP error message TG421 ("Use this report only as user 'DDIC'") typically occurs when a user attempts to execute a report or transaction that is restricted to the SAP system user 'DDIC'. The 'DDIC' user is a special user in SAP that has the necessary authorizations to perform certain administrative tasks, including executing specific reports that are not intended for regular users.
  
  Cause:
  
  User Authorization: The report or transaction is designed to be run only by the 'DDIC' user due to the sensitive nature of the operations it performs. This is a security measure to prevent unauthorized access or changes to critical system data.
  Execution Context: The report may require specific authorizations or access rights that are only granted to the 'DDIC' user.
  
  
  Solution:
  
  Run as DDIC: If you have the necessary permissions, you can log in to the SAP system using the 'DDIC' user credentials and execute the report. However, this is generally