Exclusion audiences
Use an exclusion (anti-ICP) audience to remove people from targeting, with a 50M cap.
An exclusion audience — also called an anti-ICP audience — is a list of people or companies you want to keep out of your targeting rather than reach. You apply it to suppress bad-fit accounts, existing customers, or anyone you don't want to spend ad budget on.
Size cap
Because exclusion audiences remove people rather than target them, they have a much higher cap than regular audiences: 50,000,000 records, versus the 3,000,000 cap on a regular audience.