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

SAP Error Message - Details

• 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 not recommended for regular operations due to security concerns.
  Request Authorization: If you need to run the report for legitimate business purposes, you should contact your SAP security administrator or BASIS team to request the necessary authorizations for your user account.
  Alternative Reports: Check if there are alternative reports or transactions that provide similar functionality but are accessible to regular users. Your SAP functional team may be able to assist with this.
  Review Documentation: Consult the SAP documentation or help files related to the specific report to understand its purpose and any alternative methods for achieving the desired outcome.
  
  Related Information:
  
  SAP User Roles: Understanding the roles and authorizations in SAP is crucial. The 'DDIC' user is typically used for development and administrative tasks, and its use is restricted to prevent misuse.
  Security Best Practices: Always follow security best practices when handling sensitive reports or transactions in SAP. Avoid using the 'DDIC' user for regular operations.
  SAP Notes: Check SAP Notes for any updates or specific guidance related to the report you are trying to execute. SAP Notes can provide insights into known issues and recommended solutions.
  
  If you continue to face issues or have specific requirements, it may be beneficial to engage with your SAP support team for further assistance.