To enable sending data to User.com, you need to provide your secret Segment API key. To create and revoke secret Segment keys for your app, go to App settings > Advanced > Segment API keys.
Once you insert the key in your segment account, the whole integration will be ready.
How it works
Our Segment integration will provide user tracking, event tracking and user attribute collection without the need to implement User.com tags separately.
403 Forbidden HTTP code
Verify that the API key you're using in Segment is not revoked by going to App settings > Advanced > Segment API keys.
If the problem persists, verify that the request is from a trusted domain. You can edit domains you trust by going to App settings > Advanced > Domains.