During which events a call is made to the webhook URL?
Please refer to the Webhook section
Does Colisweb use a fixed IP to call the webhook URL?
For the moment, we do not have a fixed IP address to call the webhook URL. Please refer to the Webhook section for more information.
Is there any specific header in the calls made to the webhok URL?
By default we do not have a specific header. However, as explained in the Webhook section, it is possible to specify one (or more) header to add to each call.