Hey Kellen, great question! I can’t think of a way to ensure that only one item does not show in the Replenishment Reminder email, but there is a way to ensure that a Replenishment Reminder email does not send to customers who had that free item in that specific order.
Option 1: Seeing as the Replenishment Reminder flow is triggered by ‘Placed Order’, and ‘Ordered Product’ is a separate event triggered seconds after ‘Placed Order’, I would think that adding an Additional Filter to the Replenishment Reminder email would do the trick.
The filter setup would be ‘What someone has done or not done’ → ‘Ordered Product’ → where ‘Variant Name’ equals [Variant Name] → ‘Zero times’ → ‘Since starting this flow’. Here’s a screenshot if you’re more visual like me. This would prevent sending customers from receiving a replenishment reminder email for that one order entirely.
Option 2: An easier way could be utilizing Shopify by deselecting ‘Continue selling when out of stock’ for that specific variant and setting the inventory for that variant to 0. I don’t believe that it would prevent the item from populating in the Replenishment Reminder flow, but it does prevent customers from purchasing that variant again.
Hopefully this helps and works!