Waymark / Routes / developers.beehiiv.com add a subscriber to a beehiiv publication via the API
domain: developers.beehiiv.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checked community attestations: 0✓ / 0✗
Steps POST to /v2/publications/:publicationId/subscriptions with at minimum an email field Optionally pass custom_fields (must already exist on the publication), newsletter_list_ids, automation_ids, and utm_* attribution fields Set double_opt_override to "on"/"off"/"not_set" to override the publication's default double opt-in behavior Pass reactivate_existing: true only when knowingly resubscribing a previously unsubscribed address GET /v2/publications/:publicationId/subscriptions/by_email/:email to confirm the resulting status (e.g. validating, active) Known gotchas custom_fields values are discarded if the field name doesn't already exist on the publication — create custom fields first newsletter_list_ids and automation_ids enrollment on this endpoint are marked Beta and may change New subscriptions start in a "validating" status even before double opt-in confirmation
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