"Manage communication subscriptions" is workflow action 0-43347357 (v8). Its fields are plain strings: targetContact, channel (EMAIL), optState (OPT_OUT or OPT_IN), subscriptionId, legalBasis and legalBasisExplanation.
Measured
More facts from this area
GET /communication-preferences/v4/statuses/{email}?channel=EMAILreturnsOBJECT_NOT_FOUNDfor a contact that has no subscription record yet (treat it as never set); after a change it returns one row per type withSUBSCRIBED,UNSUBSCRIBEDorNOT_SPECIFIED.Measured- A per-type status change is
POST /communication-preferences/v4/statuses/{email}with{channel: "EMAIL", subscriptionId, statusState: "UNSUBSCRIBED" | "SUBSCRIBED", legalBasis, legalBasisExplanation}.Measured - Each subscription type has a contact property
hs_email_optout_<id>(the type'sid): a HubSpot-defined, read-only single checkbox labelled "Opted out of email: <name>". The globalhs_email_optoutsits beside them, and workflow filters can use both.Measured - Subscription types can't be created or deleted through the API: a
POST /communication-preferences/v4/definitionsanswers 405. They are created one at a time in Settings > Marketing > Email > Subscription Types; reading them works.Documented and measured - In the "Manage communication subscriptions" workflow action the subscription type is a fixed choice, not a token, so a workflow that must act on different types per record needs one branch and one action per type.Measured
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