Send a group MMS to up to 20 recipients
Fans a single MMS payload (body + media_urls) out to up to 20 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 (NANP gate, validation, fraud, quota, sender-validation, media SSRF, compliance) flips the row to failed instead of throwing without persisting. Per-leg Idempotency-Key is group-mms:${group_id}:${to}. 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 group floor; 500 on bulk pre-insert failure.
Authorizations
Dashboard JWT token from Clerk
Response
Default Response