Hi @oscprofessional ,
I also setup 14-days trial, but I don’t know when trial ends, how can I update remain trial days in database? Do you have solution for this?
Topic summary
Issue: Using Shopify’s billingConfig with trialDays (e.g., 21) resets the trial to full when a merchant uninstalls and reinstalls, creating a new active charge and enabling unlimited trials.
Proposed approach: Persist trial state in your own database. Save shop ID, status (active/inactive), start date (initial install), end date (start+21), and remaining days. On uninstall, mark inactive and compute/save remaining days. On reinstall, look up the shop; if time remains, set the new charge to that remaining trial or let them continue; if exhausted, redirect to billing. Practically, recompute remaining days on each app entry by comparing current date to initial install.
Free app: Set pricing to Free in the Shopify Partner Dashboard (App pricing settings) and omit in-app billing (billing undefined).
Clarifications: Shopify does grant a new trial on reinstall by default; enforcing a single trial requires your own persistence logic. Screenshots simply illustrate the reset behavior.
Open item: A question about how currentPeriodEnd is computed when trials exist in getCurrentSubscription was asked but not answered. The thread remains partially unresolved on that specific detail.