> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.brevo.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.brevo.com/_mcp/server.

# Scheduled transactional messages (Beta)

It is now possible to schedule transactional messages to be sent in the future. You can define a single transactional email or configure a batch send-out with millions of versions.

You can achieve this by making use of our new **scheduledAt** parameter in the [Send a transactional message](https://developers.sendinblue.com/reference/sendtransacemail) endpoint

```json
{
    "sender": {
        "email": "hello@sendinblue.com"
    },
    "subject": "This is my default subject line",
    "templateId": 43,
    "params": {
        "greeting": "This is the default greeting",
        "headline": "This is the default headline"
    },
    "scheduledAt":"2022-02-28T14:22:51.970+05:30",
    "messageVersions": [
        {
            "to": [
                {
                    "email": "recipient0@sendinblue.com"
                }
            ],
            "params": {
                "greeting": "Hello again!",
                "headline": "Take advantage of our summer deals, taylored just for you"
            },
            "subject": "Some deals worth to be looked at!"
        },
        {
            "to": [
                {
                    "email": "recipient1@sendinblue.com"
                }
            ],
            "params": {
                "greeting": "Hello Marie, we have prepared some exclusive summer deals for you.",
                "headline": "Some bathing suits you might like"
            },
            "subject": "Marie, new bathing suits are here."
        }
    ]
```

## Check out the full feature guide [here](https://developers.sendinblue.com/docs/schedule-batch-sendings)!  🎉