Accepts a batch of customers affected by a product recall and asynchronously triggers the
configured recall Journey for each accepted recipient.

Recipients are validated synchronously against known customers under the given brand. Valid
recipients are accepted and queued for asynchronous Journey triggering; invalid recipients are
reported in rejected_recipients.

Required fields:

• recall_id
• journey_id
• brand
• reason_for_recall
• recipients

Up to 200 recipients are accepted per request; larger lists must be split across multiple
calls.