{"command":{"effect":"write","timeoutSeconds":30,"inputSchema":{"type":"object","description":"**This endpoint allows you to send a Single Send immediately or schedule it to be sent at a later time.**\n\nTo send your message immediately, set the `send_at` property value to the string `now`. To schedule the Single Send for future delivery, set the `send_at` value to your desired send time in [ISO 8601 date time format](https://www.iso.org/iso-8601-date-and-time-format.html) (`yyyy-MM-ddTHH:mm:ssZ`).","properties":{"path":{"type":"object","properties":{"id":{"type":"string"}},"required":["id"],"additionalProperties":false},"body":{"type":"object","properties":{"send_at":{"type":"string","description":"The ISO 8601 time at which to send the Single Send. This must be in future or the string `now`. SendGrid [Mail Send](https://docs.sendgrid.com/api-reference/mail-send/mail-send) emails can be scheduled up to 72 hours in advance. However, this scheduling constraint does not apply to emails sent via [Marketing Campaigns](https://docs.sendgrid.com/ui/sending-email/how-to-send-email-with-marketing-campaigns/).","format":"date-time"}},"required":["send_at"],"examples":[{"send_at":"3752-01-28T23:21:52.575Z"}]}},"required":["path"],"additionalProperties":false},"name":"Schedule Single Send","id":"sendgrid.mc_singlesends.schedulesinglesend","example":{"path":{"id":"example"}},"maxRequests":1,"summary":false}}