How To Fix T9111 - System time zone cannot be modified; time zone is defined in other client

T9111 - Overview

• Message type: E = Error

• Message class: T9 - Time zones/streams

• Message number: 111

• Message text: System time zone cannot be modified; time zone is defined in other client

What causes this issue?

The system time zone cannot be changed as time zones are maintained (
&V2&) and active in at least one other client (&V1&).

System Response

The field <DS:DE.TZNZONESYS>System time zone</> is not available for
input.

How to fix this error?

If the system time zone is not correct, it must be maintained in client
&v1&.
The following alternative procedure is recommended for several clients
because of their interdependencies:
Deactivate time zones in all clients (transaction STZAC)
Maintain and activate system time zones in client 000
Activate time zones in all other clients

Error message extract from SAP system. Copyright SAP SE.

T9111 - Details

• The SAP error message T9111 indicates that the system time zone cannot be modified because it is defined in another client. This typically occurs when you attempt to change the time zone settings in a client that is not the original client where the time zone was defined.
  
  Cause:
  
  Client-Specific Settings: In SAP, certain settings, including the time zone, are client-specific. If the time zone is already defined in another client, you cannot change it in the current client.
  Cross-Client Configuration: The time zone is often set at the client level, and if it is already configured in a different client, the system restricts changes to prevent inconsistencies.
  
  
  Solution:
  To resolve this issue, you can follow these steps:
  
  Check the Current Client: Verify which client you are currently logged into and check the time zone settings in that client.
  Access the Correct Client: If you need to change the time zone, log into the client where the