Starter

Create a customer in Shopify when an email bounces in SendGrid

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

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. Shopify refuses a duplicate email; the run fails and names it.

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.
Only for a store that already has an admin-created custom app. In the client’s Shopify admin: Apps → Develop apps → the app: its Admin API scopes must include write_customers and read_orders; the token is under API credentials (shown once when it is made; if it is no longer shown, generate a new one).

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

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