# 6. Notifications

To correctly configure sending transaction notifications to the store, enter the URL used for verification in the Axepta administration panel.

When a transaction status changes, Axepta servers send notifications to the URL indicated by the merchant.
The merchant’s server (e.g. the store) is required to respond with status `200 OK` and body `{"status":"ok"}`, which indicates that the notification has been correctly received and processed by the merchant’s server.\
Notifications are sent according to the following schedule:

* 3 times every second, then
* 5 times every 5 minutes, then
* 5 times every 60 minutes, then
* 5 times every 360 minutes, then
* 5 times every 720 minutes.

> If the merchant’s server returns status 200 OK, or if the notification is not received before the end of the retry cycle, Axepta servers stop retrying the notification delivery.