Introducing New Requirements for Custom Audience Targeting

Facebook updated its Custom Audiences terms to clarify that advertisers can independently work with partners, such as agencies and data providers, to create audiences, provided they have necessary rights.
Starting July 2, advertisers must specify whether audience data was collected directly from people or from partners.
The 'Why am I seeing this?' feature will show data origin and contact method.
Audience-sharing via Business Manager requires both parties to agree to terms.
Ad accounts must have all users accept terms, not just admins, and regular privacy reminders will appear.
These changes aim to increase transparency and accountability for users.