Yes, you can set up real-time synchronization between the API and your website so that when a room sells out through any channel, it stops showing as available to your customers. This prevents the frustrating situation where you confirm a booking to a customer but the room is no longer available because someone else booked it first through another portal or directly with the hotel. The way this works is the API sends you live updates about inventory changes, and your website automatically removes sold-out options from the search results and booking flow.
However, the speed and reliability of this synchronization depends on several factors beyond our control. The hotel supplier has to push accurate inventory data to us in real time, and there can sometimes be small delays between when a room actually sells and when that information reaches your system. Some suppliers update their systems more frequently and reliably than others, so the experience may vary depending on which hotels you're booking through. You should test this with your suppliers to understand the typical delay you might see in practice.
The other thing to know is that even with good synchronization, you may still want to hold a booking pending confirmation rather than instantly confirming it to your customer, just to give yourself a small buffer in case there are any gaps in the data flow. This extra step takes just a few minutes and gives you peace of mind that you won't accidentally sell something twice. Check with your API provider about what synchronization options are available on your plan and which of your hotel suppliers support real-time updates.