subscription.upgraded
Subscriber moved to a higher-priced plan.
When this fires
A subscriber is switched to a higher-priced plan on the same project. The plan assignment, currency, and stored price on the Subscriby subscription record are updated, and this event reports the move.
The switch does not itself perform a provider-side pro-ration or issue a charge. Any billing adjustment is whatever the provider does on the next cycle.
Caveats
- Direction is decided by comparing the two plan prices, normalised to USD, at switch time. Only a strictly higher new price emits
subscription.upgraded; an equal-price switch emitssubscription.downgraded, which is worth guarding for if you offer same-price plan swaps. - Trial windows do not carry across switches; if the destination plan has a trial it does not start.
Related events
subscription.downgraded: opposite direction.payment.succeeded: the next successful charge on the new plan.
Ability to subscribe
A token needs this to subscribe an endpoint to the event.
Header Parameters
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=.
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.
The event name, the same as the envelope's type.
Always application/json.
Always Subscriby-Webhooks/1.0.
Payload
JSONWhat Subscriby posts to your endpointapplication/json
The signed JSON envelope posted to your endpoint.
The envelope every event is delivered in.
Responses
2XXAny success status
Your endpoint acknowledged the delivery. Any 2xx status within 30 seconds marks it delivered; the response body is ignored.
defaultAny other status
Any other status, a connection failure, or no answer within 30 seconds counts as a failed attempt. The delivery is retried 8 times, after 10 seconds, 30 seconds, 2 minutes, 10 minutes, 1 hour, 6 hours, 1 day, 3 days; the last failure dead-letters it, and it can be retried from the dashboard or POST /v1/webhook-deliveries/{delivery}/retry. After 20 consecutive failures the endpoint is paused until it is resumed.
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