Creates multiple accounts. Non-atomic — some may succeed while others fail. Each item in the response array contains the created ID or error details.
API key passed in the X-API-Key header
Request body for bulk creating accounts
List of contact accounts to create
Array of creation results, one per input item.
Per-item error codes:
| error | Meaning |
|---|---|
| 3 | InvalidInput — validation failed for this item |