You now can now add 'non-user contacts' to your account. These are emails that are not actual users but could be an email group, a Slack Channel, or a Zapier Action.
Once created you can then use these Contacts as recipients for Alerts throughout the platform.
How to create a 'Non-user Contact';
Head to Setting > Admin > Contacts
Click on 'Create Contact'
Enter:
Contact name, ie 'Slack #alerts'
Email address
These Contacts will then appear on the Budget Settings page as a potential recipient for Alerts
How to find the email address for common third-party platforms
How to find the email addresses for some of the more common Third-Party tools:
Link to full article: https://support.adpulse.app/article/116-send-alerts-to-third-party-tools