Our use case requires sending multiple emails (approximately 5–10 emails to same customer --- rarely who order or place multiple times) based on the same event, as multiple cashback transactions are processed in bulk during the day. The custom event is being captured correctly every time, and we have implemented a unique_id for each event as per Klaviyo’s Events API documentation. Flow re-entry is enabled, and Smart Sending is disabled.
However, we are facing an issue where emails are not delivered consistently. The first email is sometimes received, but subsequent emails are not delivered, even though the event appears multiple times in the profile activity log.
These emails are purely transactional in nature (cashback and gift card notifications only) and do not contain any marketing or promotional content. We need guidance on how to configure this flow so that multiple event-based transactional emails can be delivered reliably to the same customer.
Could you please advise on how to resolve this issue and enable the appropriate settings (such as Transactional Email Sending) on our account?
Please let us know if you require any additional details or screenshots from our side.
Thank you for your support.
