How to send a push notification to a participant category

Use this guide when you want to send a notification to participants in specific categories — for example, all VIP guests or Buyers.

Request

Bash

curl -X POST "https://your-event-domain.com/api/v2/notifications/send/7" \
  -H "Authorization: Bearer your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "content": { "en": "VIP and Buyer networking starts at 18:00." },
    "user_ids": [18629, 18630, 18631, 18632, 18633],
    "subject": "VIP||Buyers"
  }'

How category filtering works

The subject parameter filters the user_ids list — only accounts that are both in user_ids and belong to one of the named categories will receive the notification. Separate multiple category names with || (double pipe).

Notes

Category names are case-insensitive
subject must be a string, not an array
Use GET /api/v2/account/getCategories?event_id= to retrieve valid category names