Webhook topic: orders/paid
From this article, it seems like we can pass any value in the ref param and it will be forwarded through the order webhook payload under landing_site_ref. I tried attaching this https://[shop-name].myshopify.com/products/[product-name]?ref=[unique-id], however what I got in the landing_site_ref was null (instead of [unique-id]).
Please let me know if my understanding is incorrect. There were several similar topics raised about this but nobody could answer it afaik.
