If a webhook fails to send (or receives anything other than a 200 OK response), it will be retried upto 5 times with increasing delays in-between attempts. 

Webhook payloads

Failures & delays

Creating webhooks

Brella Developer Documentation

Welcome

Forming API requests

Response status codes

Rate-limiting & pagination

How data is structured in Brella

A note on external_id fields

Authentication & API keys

Changelog

API quickstart

List all events

Get event by id

Find event by URL slug

Find event by name

Events

List all user groups / attendee groups

List all invites

Get invite by id

Find invite by external id

Find invite by email

Find invite by company name

Create invite

Update invite

Delete invite

Invites

List all attendees

Get attendee by id

Find attendee by email

Attendees

Get all RSVPs by attendee id

Get all RSVPs by timeslot id

Create RSVP for timeslot

Delete RSVP from timeslot

RSVP & Session check-in

List all sponsors

Get sponsor by id

Create sponsor

Update sponsor

Delete sponsor

List all speakers

Get speaker by id

Create speaker

Update speaker

Delete speaker

Speakers

List all timeslots

Find timeslot by external id

Create timeslot

Update timeslot

Delete timeslot

List speaker assignments

Assign speaker to timeslot

Update speaker assignment in timeslot

Delete speaker assignment in timeslot

Schedule

Get all meetings & chats by attendee id (cloned)

Get meeting or chat by id

Get tracking sessions by attendee id

Get tracking session slices by attendee id

Webhook triggers

Webhook logs

List all webhooks (REST)

Get webhook by id (REST)

Create webhook (REST)

Update webhook (REST)

Delete webhook (REST)

Webhooks