Keep Pinterest's customer lists honest: maintain the opt-out list automatically, and sweep deletion requests everywhere else without erasing the opt-out signal in the process.
Pinterest Ads
Pinterest builds custom audiences from hashed customer identifiers, called customer lists, and connects to advertisers through its REST API v5. Behavioral advertising and personalization are both purposes with real consent obligations attached, which means a consent change needs to move a person on or off the right list, and a deletion request needs to remove them from every list except the one recording that they opted out.
Ketch connects to Pinterest Ads to manage both.
Capabilities
Deletion is scoped to customer lists specifically; it doesn't touch the person's actual Pinterest account or other Pinterest data.
Rights Orchestration (Right to Deletion), connected via OAuth with `ads:read` and `ads:write` permissions. Manages two Ketch-owned opt-out customer lists, one for behavioral advertising and one for personalization. When someone opts out of either purpose, their hashed email or mobile advertiser ID is added to the corresponding list; opting back in removes them. Ketch creates both lists automatically during installation if they don't already exist.
Right to Deletion removes a person's hashed identifiers from every customer list in the connected account, with one deliberate exception: lists with the `ketch_` prefix (the opt-out lists themselves) are excluded from deletion sweeps, so a person's opt-out signal survives even after their other data is removed.
With Ketch, teams can
The gap
Pinterest's customer-list model creates a specific tension between deletion and opt-out preservation, alongside the more familiar problem of keeping lists current at all:
Why Ketch
Permissioning infrastructure that governs Pinterest Ads the same way it governs every other system in your stack — not a one-off connector bolted onto a banner.
Opt-out lists are deliberately excluded from deletion sweeps, so removing someone's other data doesn't accidentally erase their opt-out preference.
Behavioral advertising and personalization get separate opt-out lists, matching the granularity Pinterest's own customer-list structure supports.
The California Privacy Protection Agency fined Honda $632,000 over improperly configured data sharing with ad-tech partners, a reminder that customer-list-based targeting carries real exposure when opt-out signals aren't reliably preserved.
Related reading
Integrations
Ketch ships connectors and SDKs so consent, rights, and policy flow into your CDPs, warehouses, ad platforms, and AI stack — without a custom data pipeline.
Book a demo to walk through rights, consent, and preference orchestration on your stack — or start free and connect Pinterest Ads yourself.
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