How can I ensure my URL template works?

When you have launched your campaign or added a new creative, after some time, you'll see the option View dynamic post on Facebook in creative preview. This will open one example dynamic post generated for the campaign. When clicking the ad, you'll be directed to an example link using the URL template you've specified.

If you're unsure whether your link will work, you can launch the campaign in a paused state and come back after an hour to check the link before setting the campaign to run.

What kind of targeting works?

Booking window (the time to check-in date) is considered important by many advertisers. Consider splitting your audience into multiple ad sets based on booking window and use the appropriate bid for each. Note that this works only if you are sending accurate check-in and check-out dates in your Pixel events.

How does audience exclusion behave?

If you exclude people who have already booked a hotel from you, the exclusion follows the idea of "last event wins". What this means is that if someone booked a hotel in London, they will stop seeing ads for hotels in London. However, if the user then searches or views a hotel in Paris, the person will still be eligible to see an ad for hotels in Paris even if they are within your purchase exclusion period (assuming hotel_set either includes Paris hotels, or the audience is not associated with a hotel set).

Can I display the price as $123 instead of $123.45?

Yes, you can do that like this: {{hotel.base_price strip_zeros}}

Can I display the price as 123.45€ instead of €123.45?

Yes, you can do that like this: {{hotel.base_price raw}}€

How does Facebook choose the items (hotels, destinations, flights) to be shown in the ads?

These are based on the behavioral data gathered from the audience visiting your website or your app. The recommendations are being developed constantly and they consider the locations, user preferences and what's popular with other users. In many cases, (typically link ad or the first card of the carousel) the user gets retargeted with items that were seen last. That's not always the case as Facebook might decide that something else is more relevant for the user. However, the key to recommendations is the destination Facebook interprets the user to be interested in.

As explained in this article, different types of audiences can be combined with different types of catalogs — flight-to-hotel cross-selling being one example. In that scenario, Facebook e.g. considers what are the most popular hotels among people flying to a certain airport.

There are some rules that Facebook typically follows (but can't be guaranteed):

• If the user has viewed items and gets retargeted, the first item in the carousel is the same as the last seen item on your website or app
• All hotels in an ad (e.g. carousel cards) are from the same destination

What are the dynamic fields available in the creative?

Image templates: You can use any content in your feed. Those fields don't even have to be mapped in the Facebook catalog — read more on extra feed fields.

Text fields: You can use content from the catalog and content relevant to the individual user's trip (gathered from Pixel and app events). List of available fields listed in the Template Tags dropdown under each field.