This article covers 

Why are we receiving “[EXTERNAL] Stripe webhook delivery issues emails” from Stripe?

Summary

These emails are due to webhooks failure. The webhooks usually fail when the notification URL has not been configured correctly.

Solution

These emails mean that the webhooks are failing. The webhooks usually fail when the notification URL has not been configured correctly.

Please check the following to confirm that the notification URL has been configured properly. 

2)From your Stripe dashboard, click on developers >> webhooks and the endpoint that you have configured.  Ensure it is the same URL in Chargebee.