Guide

Slack or Discord alerts for new Supabase signups

Updated October 10, 2026

Short answer

To get notified about new signups without writing code, connect your Supabase project to Plash, create a “new rows in a table” alert on your users or profiles table, and add a Slack or Discord incoming webhook in Plash’s alert settings. Plash checks every 15 minutes and posts each batch of new rows with a short preview.

Steps

Connect Supabase with a personal access token and link the project to your app
Open Alerts › New alert, pick the Supabase source and “New rows in a table”
Choose the table, e.g. profiles or waitlist
In Settings › Alerts, paste a Slack or Discord incoming webhook URL (Slack and Discord alerts are part of Studio; email and phone alerts start on Indie)

The same works for MongoDB

Point the alert at a MongoDB collection instead; new documents are detected from their newest-first order.

Frequently asked questions

Does this need a database trigger or webhook?

No. Plash reads the table’s newest rows on each check; nothing is installed in your database.

How quickly will I hear about a signup?

Within about 15 minutes.

Do it in Plash

Alerts

Know before your users tell you

Get email, phone, Slack or Discord alerts when crash rates pass Google Play limits, ratings drop, revenue moves, or a new row lands in your database. Custom rules on any metric, checked every 15 minutes.

Learn more

Leads

Your signups table, as a sales pipeline

Pull leads straight from a Supabase or MongoDB table (signups, waitlist, contact forms), map the columns, and track each lead from new to won with notes. Read-only, secrets never copied.

Learn more

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