1. Allow our server
MongoDB Atlas → Security → Network Access → Add IP Address → enter the IP shown under Databases → External databases with /32. Wait until it says Active. (A paused free cluster also refuses connections.)
2. Save it here
Databases → External databases → name + connection string (mongodb+srv://user:password@cluster…/db) → Save. It is stored encrypted.
3. Test and attach
Press Test (checks our server can reach it), then Attach to app — it sets MONGODB_URI (or a name you choose) and restarts the app.
Stuck? Our engineers answer support tickets around the clock. Contact us, or create an account and open a ticket from the dashboard — the same guides are there too.