iGMS centres on automated guest messaging, so delivering your registration link is quick to set up. Best Guest connects in two ways:

  • Automated messages — iGMS automated/scheduled messages deliver your registration link.
  • iCal sync — Best Guest imports every reservation iGMS manages.

Estimated setup time: 5 minutes.

Before you start

  • An active iGMS account with connected channels
  • A Best Guest account
  • Your Best Guest registration link, e.g.
https://bestguest.app/l/your-listing?channel=igms

(Use your real link. ?channel=igms records the reservation origin.)

Using the right link: every listing — each apartment, room, tent, RV, or whatever counts as your smallest bookable unit — has its own unique registration link. If you manage more than one listing, double-check you’re copying the correct one. Find all your links in Best Guest under Properties → [property] → Listings → Copy listing link, or grab them during the Listings step of onboarding.

Path 1 — Automated message

  1. In iGMS, create a new template: go to Inbox → open a guest dialogue → New Template (or, for a property-only message, Properties → [property] → Property Editor → Message Templates → Customize → Template List → New Template). Name it “Best Guest Registration” and set Available For to all guests or a specific property — iGMS templates scope by property only, there’s no per-channel filter.
  2. Open that template’s Template Editor using the cog icon, then turn on Automation.
  3. Choose the Before Check-in trigger, set how many days ahead (e.g. 2 days before), and set the send time in your property’s timezone — you can also choose to include last-minute bookings.
  4. Add your message and insert iGMS’s guest-name template tag from the editor.
Hi (guest first name),

Before arrival, please complete your quick online check-in:
https://bestguest.app/l/your-listing

It takes under 2 minutes. We look forward to hosting you!

iGMS delivers through the OTA inbox, so Airbnb/Booking external-link rules apply — test with a real reservation.

Best Guest automatically reminds the main guest if they started registration but haven’t finished it. If a guest never opens the form at all, though, that reminder can’t reach them — so it’s worth scheduling a second automated message, timed 1 day after arrival instead of before it, using only the link:

Hi (guest first name),

Everything alright? Did you fill out all your forms and is the data correct?
Please follow this link if you still need to add/change some information:
https://bestguest.app/l/your-listing

Path 2 — iCal sync

iGMS exports separate Bookings [B] and Cleanings [C] calendar links per property (not per room), with booking events labelled by their source platform. To import iGMS reservations into Best Guest’s Reservation Verification, go to Properties → [property] → Calendars → Export via iCal, copy the Bookings [B] link, and paste it into Best Guest.

  • Booking confirmed → keep it personal
  • 2 days before arrival → registration link
  • Arrival day → access instructions
  • 1 day after arrival → reminder for guests who haven’t completed registration
  • Checkout → thank-you

Troubleshooting

Message didn’t send — confirm the template/trigger is enabled, the timing, and listing assignment.

Reservation missing in Best Guest — verify the URL and ?channel=igms.

Next steps

Frequently asked questions

Does iGMS deliver through the OTA inbox?

Yes — since it delivers through the OTA inbox, Airbnb/Booking external-link filtering rules still apply, so test with a real reservation before relying on it.

Informational only

This page is provided for general information and is not legal or tax advice. Rates, deadlines and exemptions are set by law and municipal ordinances and can change — always verify current requirements with your municipality or a qualified advisor.