Event catalog

Event	Fires when
template.created	A partner creates a template.
envelope.created	A new envelope is created in draft.
envelope.sent	An envelope moves to sent; invitations dispatched.
envelope.viewed	The first signer opens the signing ceremony.
envelope.signed	A signer completes their fields. Aliased as signer.signed and signer.completed.
envelope.completed	The final signer submits. The payload includes a signed_document_url field — PDF download via that URL is coming soon (currently returns 409 not_signed_yet).
envelope.voided	An envelope is voided.
envelope.declined	A signer declines.
envelope.expired	TTL elapses (background job not yet wired in v1).
signer.signed	Alias for envelope.signed, retained for legacy subscribers.
signer.completed	Alternate name for envelope.signed.

Subscribe only to the events you handle. Permissio does not penalize over-subscription, but every dispatched event is a network round-trip.