By default, activation dialog is displayed after activation so that end user can manage issued license: remove, extend or transfer his license (depending on enabled options) or in case limited license feature with "Display license expiration counter" option is enabled.

If at least one of above prerequisites is satisfied and activation dialog is still not displayed after activation this is probably because special key pop-up option feature is enabled. In this case you need to toggle special key(s) when starting application in order to access activation dialog on startup.

It is also possible that you are using advanced protection interface with "Application will handle license management" or "Application will handle expired license" options enabled in protection interface settings as these options will also prevent activation dialog from displaying on startup after application is activated.