Set an startup message for Microsoft Dynamics AX client on opening

Set a startup message for Microsoft Dynamics AX client

To set a startup message

1. Open the Configuration Utility on path
Start > Control Panel > Administrative Tools > Microsoft Dynamics AX Configuration).

 2. On the General tab, in the Startup message box, enter the message you want to display like "This is Live" or "This is Test Application" etc, and then click OK.

Other References
Display message at startup [AX 2012]
Starup Message by code in axapta