ROI stands for "Return On Investment". In other words, how much money Spently has helped your store generate.
When a customer opens or clicks a notification email or follow-up email from Spently and makes a subsequent purchase from your store within a 7 day attribution window, we attribute that sale to ROI.
Another scenario is when a customer uses a discount code generated by Spently, then we also attribute that to ROI. There is no time limitation for this attribution, as long as the discount code is still valid.
You will be able to see all of your ROI in the "Reports' section. You can reach this via the Spently dashboard.
If you have any questions, let us know via the chat bubble or at firstname.lastname@example.org.