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Few things to consider during shopify prorated calculation

Merge Request: https://gitlab.com/powr/powr/-/merge_requests/4362/diffs

1) SCENARIO Customer upgrade from lower plan to higher plan (same billing period, eg Starter monthly to Pro monthly)

WHEN

  • Starter 8.99/mo (capped 9.00)
  • Pro 14.99/mo (capped 15.00)

THEN Prorated price should be 14.99 - 8.99 = 6/mo and default to 14.99 next mo

2) SCENARIO When customer upgrade from lower plan to higher plan (lower amount to higher amount)

WHEN

  • Starter 8.99/mo (capped 9.00)

  • Pro 149.9/year (capped 150.00)

    THEN Prorated price should be 149.9 - 8.99 = 140.92 / year and default to 149.9 next year.

3) SCENARIO When customer upgrade from lower plan to higher plan (higher amount to lower amount, eg Yearly Starter to Monthly Pro)

WHEN

  • Starter 99.99/year (capped 100.00)
  • Pro 14.99/mo (capped 15.00)

THEN We dont allow this, Pilar suggested we simply don’t let them purchase a monthly upgrade if they already have a yearly.