Creates a buyer (phantom) with optional contacts and locations; links default item list for the supplier business. Optionally set initial partnership status (defaults to ACTIVE). Idempotent via Idempotency-Key.
Business identifier for external auth. Find in Polinate app → Business Settings → Integrations.
"{{businessId}}"
Per-business API key for external auth. Find in Polinate app → Business Settings → Integrations.
"{{apiKey}}"
Idempotency key for POST operations
"{{idempotencyKey}}"