When someone searches for, purchases or takes another action on inventory in your product set, you can cross-sell related inventory. For dynamic ads for travel, advertisers often choose to promote hotel inventory to people who've recently searched for flights.

In order to cross-sell travel inventory, you'll need to have a catalogue for the inventory you'd like to promote. This catalogue should include your hotel inventory.

To set up a cross-sell campaign:

1. Go to ad creation.
2. Select Catalogue sales.
3. Select the catalogue that contains the hotel inventory you want to advertise.
4. Select your Hotel set or create a new one.
5. Next, begin defining your audience.
6. Find the Event source group section and make sure that the box next to Limit audience to events within All Hotels isn't ticked. If this box is ticked, it will limit your audience to people who've browsed hotels in the hotel set that you selected in step four. As you want to reach people who are searching for flights, and not necessarily those who've already looked for hotels, it's important to leave this unticked.
7. Now find the Include section. This section will allow you to define a cross-sell audience. In our example, we want to cross-sell hotel inventory to people who've recently searched for flights. To do this, click the first drop-down and select Search. Then, click the second drop-down and select flight.
8. Once you're finished defining your audience. Fill in the Placements and Budget & Schedule sections, complete the creative for your ad and click Place Order. See the implementation guide for a comprehensive set of instructions on how to set up your dynamic ads for travel.

* Nguồn: Facebook