# Retry Mechanism
When EnGenius Cloud sends a webhook message, it expects an **HTTP 2xx** response. If an HTTP 2xx response is not received, EnGenius Cloud automatically retries the webhook delivery using a retry mechanism with increasing retry intervals after each failed attempt.
The webhook delivery retry schedule is as follows:
| |
|---|
| Attempt | Delay |
| Initial Attempt | Immediate |
| Retry 1 | 30 seconds |
| Retry 2 | 1 minute |
| Retry 3 | 5 minutes |
{% hint style="info" %}
**A maximum of 4 delivery attempts** (1 initial attempt + 3 retries) will be made for each webhook request.
{% endhint %}
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