Create a Single Send

Create a Single Send

Creates an unscheduled draft marketing email for lists, segments or all contacts, with its content, sender and unsubscribe settings.

Note: Needs a sender_id and a suppression_group_id or custom_unsubscribe_url. A send_at here only prefills the date: nothing sends until you schedule the Single Send.

Set up

Use the first option your agent supports.

API (official)

• Base URL: https://api.sendgrid.com
• Endpoint: POST /v3/marketing/singlesends
• Auth: send the header Authorization: Bearer $SENDGRID_API_KEY
• Get a key: https://app.sendgrid.com/settings/api_keys
• Docs: https://www.twilio.com/docs/sendgrid/api-reference

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
• Never print API keys.