In Google Ads click on the "New Campaign" button
Please select the "Create campaign without a goal's guidance"
Choose "Hotel" and click continue.
Campaign Name - Just enter the name of the Campaign
Campaign URL Option - You can skip this part
We would recommend to leave this on CPC, but you have other option also, please see Google Help Article: https://support.google.com/google-ads/answer/9244170?hl=en
Budget: This is the daily budget you are willing to spend
Locations: You can specify which countries are allowed to see your advert here
You can also set a start and end date or leave without and click save
Ad Group Name - Name you want to call your ad group
Bidding - CPC is Cost per click, set something reasonable here to get started and you can always modify at any time.
Once you are saved you will go live right away and the screen will look like this.
You can edit CPC easily by clicking in the box anytime
At the beginning all hotels are in the advert, if only 1 property was shared then this is fine but if many then you can specify which hotels to bid on specifically.
Click on "Devices" to see settings on device bid modifiers like Mobile or desktop
Click on Itineraries to see more options about lowering or increasing modifies for early or late bookers or multi night searches.
Your booking pages should be setup for conversion tracking since without this you will bid without seeing successful bookings from your actions.
Google Guide: https://support.google.com/google-ads/answer/9244174?hl=en
Once you have added Google tracking to your IBE you can track all conversions.
If you allow each property to set up their own Google Ads then there will be a bit more work since each conversion script needs to have the clients Google Ads and conversion ID inside.