Starter

Create a customer in Stripe when an email bounces in SendGrid

When an email bounces in SendGrid, create a customer in Stripe.

Start the 14-day trial, then find it under Templates → Library. It installs into the client you choose, switched off, with its checklist.

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Every step, in order

When it happens in the first app, the step runs in the second, with the client’s own account.

An email bounces: An email bounced, within seconds. The API key needs Event Webhook access (Mail Send alone cannot make one), and each trigger uses one of the plan’s event webhooks.
Create a customer: A new customer in the client’s Stripe account. Stripe allows two customers with one email; this step does not look first.

Nothing. It needs only the accounts it connects to.

Each is the client’s own, stored encrypted and never copied between clients. Until one is added the client’s checklist shows it, and nothing runs.

SendGrid → Settings → API Keys → Create API Key with Mail Send access; for the triggers, also the Event Webhook settings permission (user.webhooks.event.settings.read and user.webhooks.event.settings.update), or Full Access. The From address must be a verified sender.
In the client’s Stripe dashboard: Developers → API keys → Create restricted key. Give it only what the steps need: Customers write, Payment Links write, Prices read, Invoices write, and Webhook Endpoints write for the triggers. Leave “IP access” empty: Thrum has no fixed addresses, so a key locked to IPs fails every call.

It lands switched off. The client’s checklist holds exactly this:

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