plan.* events

The creator arranged the order plans appear in on the portal and in the bot, or reset it.

When this fires

A creator drags plans into a new order in the dashboard's Arrange Storefront Order dialog and saves, calls POST /v1/projects/{project}/plans/order, or runs the reorder_plans MCP tool. Resetting to the built-in order fires it too. The event carries the resulting order of every plan currently on sale, so a mirror of the storefront can re-sort itself without a second read.

The built-in order is passes first, then seasons, then subscriptions, each group cheapest first. Plans created after an arrangement join the end in that order until the creator arranges again, so plan_ids on this event may be shorter than the plan list read a week later.

Related events

  • plan.created: a new plan joins the end of the storefront.
  • plan.activated, plan.deactivated: a plan entering or leaving the storefront.
postWebhookplan.order_changed

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'plan.order_changed' required

The event name, always plan.order_changed 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.