Comments
Receive feedback on your Preview Deployments from Team members and invited collaborators.

Comments on a Preview Deployment of the Vercel homepage.
Comments allow Teams and invited participants to give direct feedback on Preview Deployments. Comments can be added to any part of the UI, opening discussion threads that can be linked to Slack threads. This feature is enabled by default on all preview deployments, for all account plans, free of charge. The only requirement is that all users must have a Vercel account.