Delivery of a webhook payload has failed when Box does not receive a
response with a HTTP status code in the
299 range within 30 seconds
of sending the payload.
When delivery of a webhook fails Box will resend it up to 10 times. The initial retry will take place 5 minutes after the failure and from there an exponential back-off strategy will be used to avoid overloading the destination server.
By using exponential back- off, Box will wait an increasingly longer time for every retry.