When a visitor checks in at the kiosk or via the guard app, the system saves their data and attempts to de-duplicate the visitor using a combination of their ID/passport number and telephone number. However, if two different ID numbers are provided, two separate visitor records may be created using the same mobile number, which is a known caveat of the de-duplication process. In such cases, the ID/numbers are used as the primary method for de-duplication, and mobile numbers are used as a fallback.
Note that the EvTrack Connect companion app and web portal have stricter de-duplication measures and may display an error message stating "Visitor with the same mobile number already exists" to ensure the user double-checks and de-duplicates the data accurately.