member.* events

A member row was created as a lead.

When this fires

Somebody the project had never seen opened its bot, arrived through a Smart Link or a referral link, signed in to its portal or wrote to its support, and a member row was created for them with the status lead. It fires once per row, whichever door they came through, the moment the row is written; it never fires for a connected account adopted from a sibling project or linked by a backfill, because nobody just walked in. The lead sequences of Lead nurture enrol the member on the same event.

Caveats

  • The payload carries no name and no connected account. Resolve the member with the member endpoint using data.subscriber_id.
  • A lead who buys later raises subscription.activated (a paid checkout) or subscription.created (an access code or a cardless trial) with the same subscriber_id; a lead who leaves without buying raises nothing more.

Related events

  • sequence.enrolled: the lead sequences the arrival enrols the member in, with trigger lead.
  • subscription.activated: the paid-checkout join signal.
postWebhookmember.lead_created

Headers

SB-Signaturestring required

t=<unix seconds>,v1=<hex>: the HMAC-SHA256 of "<t>.<raw body>" under the endpoint's secret. Verify it before acting, and refuse a t more than 300 seconds from now. During a secret rotation a v0= signature under the previous secret may precede v1=.

SB-Event-Idstring required

The event's ULID, bare. The envelope's id is the same ULID prefixed evt_, so strip the prefix before comparing. Deduplicate on it: a retry carries the same id.

SB-Event-Namestring required

The event name, the same as the envelope's type.

Content-Typestring required

Always application/json.

User-Agentstring required

Always Subscriby-Webhooks/1.0.

Payload

idstring required

A ULID unique to the event, prefixed evt_. Every retry carries the same id, so it is the key to deduplicate on.

type'member.lead_created' required

The event name, always member.lead_created here.

created_atstring date-time required

When the event was emitted, server time, ISO 8601.

api_versionstring required

The contract version of the payload shape, 2026-05-01 today. A breaking change to a shape ships under a new version.

project_idstring uuid nullable required

The project the event belongs to; null for team-scoped and billing events.

Response

Your endpoint acknowledged the delivery. Any 2xx status within 30 seconds marks it delivered; the response body is ignored.

Changes

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.