MLM configuration beyond two levels
Referly stops at two levels. A deeper structure has nowhere to land, and this is the one item on the page that can make a migration the wrong call rather than just a chore.
Commission structures
Rebuilt by hand, as on every migration from every tool. Referly's rule groups cover product, order amount, landing page, medium and coupon conditions, so most structures have an equivalent shape.
Workflow automations
No export, no import. Referly's nearest equivalents are announcements, email notifications, performance bonuses and milestones, all set up fresh.
Deeplinks and product feeds
Configured again. Referly supports landing-page URLs per program rather than a feed-driven deeplink catalogue.
The historic click log
Not importable from any tool, and it stings more here: clicks are part of what Tapfiliate bills you on, so it is the history you are most used to looking at.
Affiliates, groups and their details
Names, emails, payout emails and status come across. Groups are recreated, but affiliates can be mapped into them during the import.
Referral codes and links
The code survives; the domain changes.
Customers, sales and commissions
With their original dates, so the history you built on Tapfiliate is still the history you report on.
Paid payouts
Sales you import can carry their paid status, so nobody is paid twice. The payout records themselves stay behind.
Unpaid commissions
Import them marked unpaid and pay from Referly, or pay them out of Tapfiliate first.
Coupon codes
Imported as codes, and optionally re-minted on your connected store so they actually work at checkout rather than only being recorded.
Commission structures are rebuilt by hand on every migration, from every tool, including this one. On Tapfiliate the honest warning is bigger than that: check your MLM depth before you start.
program into 
Rewardful
FirstPromoter
Tolt
