Send a WhatsApp template to up to 256 recipients (broadcast list)
Fans out a single approved WhatsApp template to up to 256 individual recipients in one operation. Each recipient is pre-inserted as a pending row before the per-recipient send pipeline runs, so a pre-create rejection (template-not-approved, parameter-count mismatch, 24h-window block, fraud guard, quota, sender-validation) flips the row to failed instead of throwing without persisting. Per-recipient template_params override the batch-level shared template_params. Returns HTTP 207 (Multi-Status) when at least one recipient failed AND at least one succeeded; 200 when every recipient succeeded; 402 if the org balance cannot cover the broadcast floor; 500 on bulk pre-insert failure.
Authorizations
Dashboard JWT token from Clerk
Response
Default Response