The ID of the subscriber to send the message to. Either subscriber_id or phone is required.

The phone number of the subscriber to send the message to. The subscriber must exist. Either phone or subscriber_id is required. The phone number of the subscriber you want to send the message to.

ISO Alpha-2 country code, used to parse phone more accurately.

The message body that you want to send to the subscriber.

The category of message you are sending.

The URL of the media to send with the message. The media can be of type gif, png, and jpeg and will be formatted correctly on the recipient's device. The media size limit is 1MB for supported file types (JPEG, PNG, GIF) and 500KB for other types of accepted media. Please note that if you include a media url with your message, then it gets sent as an MMS message, which has different costs and character limits than SMS messages.

Shop API Token. Required for partners. This header should be used only by partners. Shops should include their API token in the Authorization header.