Meta Business Help Centre
About shared audiences

Shared audiences are a way to allow other people access to the audiences that you've created for your ads. You can bulk-share Custom and Lookalike Audiences between ad accounts and/or media agencies as long as both the sharer and recipient are tied to a Business Manager.
Learn how to sign up for Business Manager.
If the person sharing allows it, the recipient can view insights to help with creative planning and targeting strategies.
Notes:
- You can't use a shared audience to create a Lookalike Audience
- If you're using a shared audience for an ad set and the owner of the audience deletes it, your ad set will be made inactive and you'll be prompted to choose a new target audience for it
- You can't share saved audiences.
- You're not allowed to sell your audiences to other businesses.