What’s the best timing for sending cart abandonment emails that actually convert?

Hey everyone,

I’ve been testing a basic cart abandonment flow in Rejoiner for our Shopify store and while we’re seeing some recoveries, the conversion rate isn’t where I’d like it to be yet. ragdoll hit

My main question is:
What timing intervals have worked best for you when sending cart abandonment emails? Do you find better results sending the first one within an hour, or is it more effective to wait a bit longer? Also, how many emails in total do you include in your sequence?

Bonus: If anyone’s tried A/B testing subject lines or incentives (like free shipping vs. discount), I’d love to hear what’s working!

Appreciate any insights or examples you’re willing to share!
—Kara_MarketingTeam