# Product feeds documentation and email open/click tracking

*Version 1.221 – released 2026-01-31*

## Product feeds documentation

Official docs for the product feed endpoint – the format, supported filters, and how to wire it up to Google Merchant Center, Meta catalogs, and TikTok Shop.

## Email open/click tracking

Transactional and marketing emails sent through Resend now report opens and clicks back into YNS. The data shows up per-subscriber and in newsletter campaign summaries.