Modify a Reservation (Dates and Guests)

A guest's plans change. They want an extra night, their flight moved, one of the four travellers dropped out, or they're bringing the dog after all. You can change any reservation Haven took that has a pricing record in place — a pending request, an approval the guest hasn't paid yet, a paid stay, or a manual booking you created in the manual-booking dialog — dates and guest counts alike. On a paid stay Haven settles the price difference with the guest automatically; on an unpaid one the guest simply pays the new total.

A stay converted from synced dates has no pricing record, so Modify reservation stays hidden. Convert to Direct does not show it. To split that stay, cancel it, then create a direct booking for each date range.

You no longer need to cancel and rebook to change a booking. That old workaround refunded the guest, released their dates to the open market, and made them pay again at whatever your rates are today. Modifying keeps the reservation, keeps its original pricing, and charges or refunds only the difference.

What You Can Change

Check-in and check-out dates — extend, shorten, or move the stay entirely
Adults
Children
Infants
Pets

The new stay has to pass the same availability rules as a fresh booking: no overlap with another reservation, your minimum and maximum stay, occupancy, pets, and any check-in or check-out day rules. Advance notice and your booking window only apply to a date that actually moves, so a stay that starts tomorrow, or is already underway, can still be extended or shortened at the other end.

Everything else about the booking stays as it is. To change what the guest pays without changing the stay itself, use Issue refund (after payment) or Adjust price (before payment).

How to Modify a Booking

Open the reservation — from Calendar → Inbox, the listing's calendar, or the confirmation email link.
On a paid stay, click Modify reservation (it sits with Cancel Reservation and Issue refund). On a pending request or an approval awaiting payment, click Change dates or guests on the Action Required or Payment Pending card. You can also click the Dates or Guests chip at the top of the reservation — all of these open the same dialog.

You can also just ask the assistant bar at the bottom of your dashboard or the reservation page — "Move Francesca's stay to the 12th", "Make the Garigue booking three adults", "Add a night to the Kirkwood request". It finds the reservation, shows a card with the old and new total and what happens to the difference, and changes nothing until you click Confirm change.

Check the Current reservation strip at the top. It shows the booking as it stands: its state (Confirmed · paid, Awaiting payment, Pending approval, or Manual booking), the dates and nights, who is staying, the total, and on a paid stay the card on file.
Pick the new dates — click check-in first, then check-out, exactly as on a booking site — and use the steppers for adults, children, infants and pets. On a stay already in progress only check-out can move.
Read Your change. It sits beside the fields and is always visible: dates, guests and total shown as before → after, the difference, each added night with its price, and under When you confirm, in plain words, what happens to the money and the booking. Until you change something it says Nothing changed yet, and while a price is being worked out it says so.
Click the confirm button. It names what it does — Charge $120.00 and confirm, Refund $80.00 and confirm, Send payment link for $120.00, or plain Confirm change when no money moves. A line above it explains whenever it is off (nothing changed yet, still pricing, or a change the calendar refuses).

The guest gets a Reservation updated email with the new dates, party and total, and a line saying what happened to the money — charged to their card, refunded, or still to pay. The same note lands on the reservation thread, and goes out by text too if they've opted into stay texts.

How the New Price Is Worked Out

Haven re-prices the stay against the booking's own frozen pricing, not your current settings. The nightly rates, discounts, fees, taxes and cancellation terms the guest agreed to at checkout all still apply. Raising your rates after a booking is confirmed can never retroactively re-price it.

The one exception is nights the booking never covered. An extra night at the end of a stay has no agreed price, so it's priced at your current calendar rate for that date — including any seasonal rate or price override you've since set. The price panel breaks this out per night so you can see exactly what an added night costs before you confirm.

Everything else recomputes off the frozen terms: taxes are recalculated on the new base using the tax rules captured at booking, per-night and per-guest fees re-multiply against the new stay length and party size, and pet fees apply at the rate on the booking.

Before the Guest Has Paid

A pending request or an approved-but-unpaid stay has no payment to settle, so a change is simpler: Haven re-quotes the stay on the terms the guest was given (new nights at today's calendar rate) and the guest pays the new total when they check out.

The guest is emailed the updated stay and total. If the stay is already approved, the email carries a fresh Complete payment link.
If the guest had a checkout page open, it is cancelled so they can't pay for the old stay by mistake; they re-open checkout at the new price.
A pending request stays pending for you to approve, and its expiry clock does not restart.
Any discount you already offered on the request stays in place.
Nothing else is scheduled yet — there is no deposit hold, guest mail or turnover task on an unpaid stay to move.

Manual Bookings

A booking you entered by hand can be changed too. Haven records the price difference on the reservation, but because it never charged the guest it moves no money — settle the difference with the guest yourself. Everything scheduled around the dates moves as it would for a paid stay.

What Happens to the Money on a Paid Stay

Situation	What happens
Price goes up and there's a card on file	The difference is charged to the saved card straight away and the change applies immediately
Price goes up and there's no usable card	The guest gets a payment link. The reservation does not change until they pay
Price goes down	The difference is refunded to the guest's original payment method, and your payout drops by the same amount
No price change (infants and children don't price on most listings)	The change applies immediately, no charge, no refund

Most bookings have no saved card — Haven only keeps one when checkout asked for it, typically for a security deposit hold. So a change that costs the guest more will usually take the payment-link route rather than charging silently. A card that does exist can also decline or ask for 3-D Secure verification, which lands in the same place.

Any increase in price is added to your payout for that booking; any decrease comes out of it. If that booking's payout has already gone out, the difference settles separately rather than amending a payout that's already been released. See Scheduled Payouts.

When a Change Is Waiting on the Guest

When the guest needs to pay, Haven emails them the payment link and posts it on the reservation thread, and the reservation shows a Change waiting on the guest card with the pending dates, the party, and the amount owed. Until they pay:

The reservation has not changed. The original dates and guest counts still apply everywhere — your calendar, your channels, your cleaners, the guest's guide.
The dates are not held. They stay bookable, and if someone else books them first, the guest's payment is automatically refunded and the change is dropped.
The link expires after 48 hours.

You have two options on that card:

Resend link — emails the same link to the guest again. It's the same link and the same price, so they can't end up with two live quotes.
Discard change — drops the change and kills the link. Nothing to undo: the booking was never touched.

Modify reservation is hidden while a change is pending, so you can't stack a second change on top of one that's about to land. Discard the pending change first if you've changed your mind about what to offer.

What Gets Rescheduled Automatically

On a confirmed stay, changing the dates moves everything scheduled around them:

Security deposit hold — the authorization and release times slide onto the new window
Guest emails and the check-in text — the whole schedule is rebuilt on the new dates
Turnover and fulfillment tasks — cleaners and service tasks move with the checkout
Smart lock codes — re-issued for the new window
Thermostat schedules — revoked and re-provisioned
Damage protection — the Truvi coverage window is updated
Calendar sync — pushed to your connected channels and PMS

Changing only the guest counts touches none of that, since the occupancy dates didn't move. Only the calendar and pricing pushes run.

When You Can't Modify a Booking

The change isn't offered when:

The reservation is an inquiry — there is no quote to change yet. Reply to it or pre-approve it first
It is one room of a multi-room booking — rooms can't move one at a time yet
The stay has already ended — its money is settled and the payout may already be out. Use Issue refund for a goodwill gesture after the fact
The booking came from a connected PMS or channel — any of them (Guesty, OwnerRez, Hospitable, Lodgify, Hostfully, Hostex, Smoobu, Beds24, Track, Uplisting, Airbnb). Those reservations belong to the system that created them, so Haven shows neither Modify reservation nor Cancel Reservation on them — change or cancel them there and the update syncs back to Haven. See PMS Integrations Overview
It was converted from synced dates (Convert to Direct). That stay has no pricing record — the total you typed is stored on the booking, not as a checkout snapshot — so Modify reservation stays hidden. Convert to Direct does not show it. To split the stay, cancel it, then create a direct booking for each date range. Cancel reservation on that future confirmed stay cancels it in Haven and emails the guest when Haven has their email. It sends the cancel on to the property system only when the stay still has a reservation link and that connection can receive a reservation cancel. A Hostex link can, when outbound reservation changes are allowed. A direct Airbnb connection cannot, and a Blocked via Airbnb bar has no reservation link, so cancelling the converted stay does not remove the original dates there. A stay that is still synced, and not converted, has no Cancel reservation button — change it in the PMS.

A booking taken on Haven stays modifiable even when it's been pushed out to a connected PMS, and Haven moves the partner's copy for you where the PMS allows it:

PMS	What Haven does after you change the dates
Guesty	Moves the reservation's dates and guest count automatically (including a pending request Guesty already holds).
OwnerRez, Hostfully	Moves the reservation's dates automatically. Neither takes a guest count through its API — if the party changed, you get a task to set it in the PMS.
Lodgify, Hospitable	No date-editing API. Haven updates the availability calendar and gives you a dashboard task (and an email) with a link to update the booking's dates by hand.

If a push fails for any other reason, you get the same task rather than a silently wrong PMS. Vacated nights are released on every connected calendar, and the new nights are blocked.

A stay that's already in progress can still be modified — extending a guest who wants two more nights is the most common reason to use this at all.

What Can Block a Change

The dialog checks the proposed stay the same way a new booking is checked, and tells you which rule it breaks before you can confirm:

The new dates overlap another booking or a blocked period
The stay is shorter than your minimum stay or longer than your maximum stay
Check-in falls outside your advance notice window or on a day your check-in day rules disallow
The party exceeds the listing's maximum guests
The pet count exceeds your maximum pets, or the listing doesn't accept pets

The booking itself is excluded from the conflict check, so extending into your own dates works exactly as you'd expect.

Guests Can't Modify Their Own Reservations

Changes are host-initiated. A guest who wants different dates messages you, and you make the change. That keeps you in control of whether the dates work for your calendar and your cleaners, and stops guests re-pricing a stay themselves.