If a hotel cancels on my customer after they have already booked through my portal, will I find out about it?

Yes, you should find out through the portal, but how quickly you hear depends on the supplier who holds that booking. When a hotel cancels or rejects a reservation, the supplier sends that change back through the connection, and the booking in your portal moves out of confirmed status so your team can see something has changed. Most setups can also send you an alert by email so you are not relying on someone happening to open the booking that day.

The honest part is that suppliers do not all behave the same way. Some push a change the moment the hotel reports it, and some only report it when the booking record is next checked, which means there can be a gap between the hotel deciding and you knowing. That gap is set by the supplier, not by the portal, so for bookings that matter a lot, such as a group or a wedding, it is still worth a direct check close to travel rather than trusting silence.

It is also worth being clear that the portal will tell you, but it cannot fix it for you. No booking system can make a hotel honour a room it has given away, so rebooking the customer into another property is a decision you or your staff will make. Any money owed back comes through on the supplier terms that applied to the original rate, and how long that takes varies by supplier.

A good next step is to check that cancellation and change alerts are switched on and pointed at an inbox someone actually watches, and to ask which of your connected suppliers report changes automatically before your busy season starts.