Here’s how you can trigger a workflow from your servers using an API request. This is an advanced feature and it requires programming knowledge:
What you will need:
- account API key
- user must already exist in your account
- identification is made based on email, _id or uuid (based on your account settings)
 
- campaign ID
- event (optional)
{
    "event": {"attribute": "value"}, //optional, used for dynamic tags only
    "recipients": [
        // at least one of the following is required for identification
        {
            "email": "email_adress",
            "_id": "user_id",
            "uuid": "uuid",
            "tel": "phone_number"
        },
...
    ]
}