Using Partnership ads, advertisers can build custom engagement audiences and lookalike audiences off of Creator Instagram accounts.
Steps to build custom instagram audiences
1. Log into Facebook Ads Manager and navigate under Audiences.
2. Click the Create audience button in the top left corner, and then Custom Audience.
3. Select Instagram account as your audience source.
4. Under the Source drop-down, search for your Creator Partners handle.
5. Select preferred Event from the Events drop-down, and Retention (the below example would build an audience including everyone who has engaged with Haley’s account in the last 365 days).
6. Name the audience and click Create Audience.