"This project doesn't support sessions" error message when creating an alert

[dalnoki]

Environment

SaaS (https://sentry.io/)

Steps to Reproduce

1. go to the create alert page (https://slug.sentry.io/alerts/wizard/?referrer=alert_stream)
2. select a unity project
3. Add the Percent of sessions affected by an issue is ... condition
4. this message appears:

Expected Result

users should be able to create this type of request since unity is supported according to the docs: https://docs.sentry.io/product/releases/setup/#release-health

Actual Result

users cannot currently create this type of request

Product Area

Alerts

Link

No response

DSN

No response

Version

No response

[getsantry[bot]]

Routing to @getsentry/product-owners-alerts for triage ⏲️

[getsantry[bot]]

Auto-routing to @getsentry/product-owners-alerts for triage ⏲️

[getsantry[bot]]

Routing to @getsentry/product-owners-ddm for triage ⏲️