A door PIN for every guest — nobody has to generate it by hand
Connect your TTLock or WeLock locks once, assign them to your listings, and Best Guest issues a door PIN for every reservation automatically — working from the start of the arrival day to the end of the departure day, so an early arrival or a delayed checkout never leaves anyone locked out.
How It Works
From connecting your lock provider to a guest opening the door with their own code.
Connect TTLock or WeLock
TTLock: log in with your existing TTLock account. WeLock: no account of your own needed — just add each lock by the device number printed on it.
Assign each lock to a listing
Sync your locks, then match each one to the listing it belongs to.
The PIN is ready before arrival and stops working after departure
Best Guest creates the code automatically in the days before check-in (or straight away for a last-minute booking), delivers it with the rest of the check-in instructions, and it stops working once the stay is over.
What's Included
What you get:
- Works with both TTLock and WeLock devices — mix providers across your listings if that's what you already own
- PIN generated automatically from the reservation — valid for the whole stay, so arrival times never need to be exact
- Cancel a reservation and the code is revoked immediately on a gateway-connected TTLock lock
- WeLock codes stop working on their own when the stay ends — nothing to delete by hand
- Battery level for TTLock locks, refreshed each time you sync, so a flat battery isn't a surprise
- One dashboard for every lock across your whole portfolio — no separate app per provider
Benefits
Nothing to copy into a message
The PIN is added into your check-in instructions automatically and delivered with everything else — nothing to copy into a message.
Every code belongs to one booking
Each PIN is issued against a single reservation and stops working when that booking's window closes — no permanent master code being passed from guest to guest.
No new hardware to buy
If you already have TTLock or WeLock locks installed, this connects to what you own — nothing extra to purchase or replace.
Related Features
These features work closely together.
Multilingual Guest Check-In
Guests fill in everything the authorities need before they arrive, in their own language. 43 languages to choose from.
Learn moreQR Check-in at the Door
Put one QR poster by the entrance and guests register themselves before they even step inside.
Learn moreCheck-in Instructions & Door Codes
Door codes and Wi-Fi stay hidden until every guest has checked in — then Best Guest sends the full instructions automatically.
Learn moreFrequently Asked Questions
Which smart-lock brands does Best Guest support?
TTLock and WeLock, both fully supported — connect one, the other, or both at once.
Do I need my own TTLock or WeLock account?
For TTLock, yes — log in with the TTLock account your locks are registered to. For WeLock, no account is needed at all — just add each lock by the device number printed on it.
Can a guest's code be cancelled early?
For TTLock, yes, if the lock has a gateway (Wi-Fi bridge) connected — the code is cancelled instantly. Without a gateway, the code still works fine, but it can only expire on its own at the end of its validity. WeLock codes always work this way — there's no remote cancellation, the code simply stops working once its time is up.
What happens if a reservation gets cancelled?
If the lock supports it (TTLock with a gateway), the code is cancelled immediately. Otherwise, it simply expires on its original end date, the same as it would after a normal stay.
Does this replace the keypad or lock I already have?
No — the PIN is entered on your existing TTLock or WeLock keypad. If you don't have either brand installed, your check-in instructions can still include a code you type in yourself.
When does the guest actually receive the code?
With their check-in instructions, which Best Guest sends once every guest on the booking has completed their check-in form. The PIN is ready ahead of time, but guests only see it after that — never before someone has actually registered.
Is this included in my Best Guest plan?
Yes — smart locks are included in every Best Guest account.
Does every WeLock lock work with this?
WeLock locks made in 2019 or later work with Best Guest. Older models can't be connected — if you're not sure how old your lock is, WeLock support can tell you from the model number printed on it.