Click on the Help button ❔ next to the Settings ⚙️ button > select ' ℹ️ About' (1). A new dialog will pop up with the Parking Pro 'Unique Identifier' (2) Related ArticlesHow can I connect my Calendar Pro with Map Pro?How to find the Booking Room Pro ID?How to check the Calendar ID?How to get the Calendar Pro version?How to get Parking Pro version?