Send broadcast
Start sending a broadcast immediately. The broadcast must be in draft or scheduled status and have at least one recipient. Messages are sent sequentially with rate limiting.
API key authentication - use your Late API key as a Bearer token
In: header
Path Parameters
Broadcast ID
Response Body
application/json
application/json
application/json
curl -X POST "https://getlate.dev/api/v1/whatsapp/broadcasts/string/send"{
"success": true,
"status": "completed",
"sent": 95,
"failed": 5,
"total": 100
}{
"error": "Unauthorized"
}{
"error": "Not found"
}Schedule broadcast POST
Schedule a draft broadcast for future sending. The scheduled time must be in the future and no more than 30 days in advance. The broadcast must be in draft status and have recipients.
Bulk send template messages POST
Send a template message to multiple recipients in a single request. Maximum 100 recipients per request. Only template messages are supported for bulk sending (not free-form text). Each recipient can have optional per-recipient template variables for personalization. Returns detailed results for each recipient.