Open your Jira in the browser;

Click on the Settings icon in the upper right corner;

Select System;

Scroll Jira Settings to the bottom and select Webhooks;

Click Create a WebHook in the upper right-hand corner;

Enter a webhook name;

Switch to Leverice and copy the Webhook URL at the bottom of the Jira Settings window;

Switch back to Jira and paste the webhook URL into the URL field;

Scroll down to the Events section;

Enter the following text into the All issues field: project = [project key]

Copy project key from the Project key field in Leverice.

Tick all Issue and Comment checkboxes right under the All issues field;

Scroll down to the bottom of the page and click Create.