First-party data activation is the process of syncing the data signals of your users (user behavior, parameters, their first name, last name, phone number, journey, etc.), with the Ad platforms to achieve the desired Business Objectives. So, in the first-party data activation strategy, you give your business objectives to the ad platforms and then accordingly you will send the relevant first-party data signals to train these ad algorithms to meet your goals. Basically transforming your business goals into marketing strategies.

One tool that goes without saying would be - your website where the customers/users land. That's the first place where your first-party data strategy starts. Then you need a tool in place to collect this first-party data - which is the 1PD Ops tool. Then you would need to structure your ad campaigns according to your business objectives.

You have to setup a robust 1P domain tracking on the server-side to start collecting your first-party data.