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Review these constraints and behaviours before you launch a Subscription Upgrade funnel. They explain the edges of what the feature can and cannot do, and prevent the most common surprises.

Important notes

  • One subscription change per post-purchase flow. Only one subscription offer can be accepted per post-purchase page. If your funnel has multiple subscription-related steps, only the first accepted offer goes through. The funnel editor warns when it detects this conflict.
  • Subscriptions only. This feature only fires when the customer’s order contains the subscription version of the eligible product. It will not fire for one-time purchases of the same product.
  • Frequency on replacements. When using Replace with a different subscription product, the new item inherits the original subscription’s frequency unless you also pick Change frequency and replace product.
  • Multi-product upsells. Subscription upgrade settings are configured per product. If you are offering multiple products in one upsell, configure each individually.
  • Recurring discount applies to every future renewal. Unlike a one-time discount, this stays in effect on every renewal of the upgraded subscription.
  • Prepaid conversion with partial credit is not supported. If a customer already paid for part of a prepaid cycle, Aftersell cannot pro-rate the remaining shipments. Replacement upgrades charge the full new subscription and refund the original.

Provider-specific limitations

Each subscription platform behaves a little differently. Loop in particular has the most constraints (postpaid only, selling plans must pre-exist, up to a 24-hour sync delay). For the full per-provider details, see the integration guides: