WhatsApp Broadcast
Send messages to STT Mall WhatsApp groups
Send to Channels
Broadcast API
Send messages programmatically via POST /api/whatsapp/broadcast
curl -X POST https://crm.sttmall.hk/api/whatsapp/broadcast \
-H "Authorization: Bearer $CRON_SECRET" \
-H "Content-Type: application/json" \
-d '{
"channels": ["120363179998115949@g.us"],
"message": "Hello from STT CRM!",
"imageUrl": "https://..."
}'