The reason teams stay on billing platforms they’ve outgrown isn’t loyalty —it’s fear of the move. Token portability and a parallel-run migration remove the two risks that fear is made of: locked-in cards and a cut over that could break renewals.
Migration
No re-entered cards · No cut over night · No revenue gap
Sound familiar?
Three objections come up in almost every migration conversation. All three were true once. None of them has to be true now.
The oldest form of vendor lock-in: your subscribers’ payment methods live in someone else’s vault, and asking thousands of customers to re-enter a card is a churn event you’d never sign up for voluntarily. So the vault holds you hostage.
Everyone has heard a cutover horror story:renewals that didn’t fire, customers double-billed by two systems, a weekend ofreconciliation spreadsheets. If migrationmeans one high-stakes night, the rationalmove is to keep postponing it.
Billing touches everything — checkout,provisioning, accounting, the data warehouse. The quote from engineering comes back in quarters, not weeks, and the platform you’ve outgrown quietly wins another year by default.
Reframe
Plans, coupons, and billing rules are just configuration — tedious to recreate, but safe. The genuinely scary asset is the vaulted card tokens, because they’re the one thing you can’t ask customers to redo at scale. Name the real risk and the problem gets much smaller: solve for the tokens, and the rest is project management.
Most of the risk is about tokens, not the platform
Two things broke the old lock-in. Processors now support PCI-compliant token transfers between certified vaults, and orchestration platforms store tokens in processor-agnostic vaults you own. Once the tokens are portable — or better, once they were never captive to begin with — the vault stops being a hostage situation.
Token portability changes everything
The horror stories all share one feature: a single cut over moment. Run both platforms in parallel instead— new customers on the new system, existing subscriptions migrating in batches between billing cycles— and there is no moment where everything has to go right at once. The rollback plan is simply the old platform, still running.
A parallel-run approach eliminates downtime risk
Four levers, one platform
1
Tokens stored independently – not locked to your current PSP
An agnostic vault means your customers’ payment methods belong to you.
New payment methods are tokenized in PaymentKit’s processor-agnostic vault, so any processor you connect can charge them — today or three years from now. Existing tokens keep working because your processors stay connected, and where a processor supports PCI-compliant token migration, saved cards move over too.
2
Customers never see the migration happen
The only acceptable customer experience of a billing migration is none.
Renewals charge the same card through the same processor before,during, and after the move. No “please update your payment details”email blast, no re-authorization campaign, no support tickets asking why the charge looks different. If a customer can tell you migrated,something went wrong.
3
Subscriptions continue uninterrupted through the switchover
Migrations happen between billing cycles — never in the middle of one.
Each subscription batch moves after its renewal fires and before the next one is due, then renews on PaymentKit with its state intact: plan,trial status, discounts, and next-bill date. A subscription is only deactivated on the old platform once it’s confirmed live on the new one— the rule that makes double-billing and missed renewals structurally impossible.
The playbook
Link your processors,recreate your catalog, and validate with test charges in a sandbox. Your current platform keeps billing everything while you set up.
01
02
New signups start on PaymentKit from day one.You’re validating the full flow — checkout, renewals,dunning, metrics — with real volume, at low stakes.
Move cohorts between billing cycles, reconcile each batch against defined checks, and only then move the next. Pace is yours: a week or a quarter both work.
03
Once the last batch reconciles, cancel the old subscriptions and the old contract. Until that moment,it’s your rollback plan —which is why there’s never a cliff.
04
Starting points
The playbook is the same everywhere; the export quirks aren’t. Here’s what changes per platform.
Recurly’s gateway-agnostic setup works in your favor: your processor salready exist independently, so they reconnect to PaymentKit directly.Export customers and subscriptions via Recurly’s API, and plan around its dunning state so in-recovery invoices aren’t dropped mid-sequence.
Chargebee’s bulk export covers customers, subscriptions, and invoices cleanly. The main planning items are its add-on modules —map what RevRec or Retention were doing before you switch them off— and its cumulative-billing pricing, which stops accruing the day your volume moves.
Maxio migrations are really two exports — billing data from the Chargify side, analytics history from the SaaS Optics side.Subscriptions and catalog move like any Chargify migration; historical metrics can be archived for reference since PaymentKit rebuilds metrics from live billing data.
The easiest of the four, because Stripe stays connected as a processor: existing Stripe-vaulted cards keep charging with zero token work. You’re moving the billing logic — plans, subscriptions, schedules— while the payment rails underneath don’t change at all.
The payoff
Every charge goes to the processor most likely to approve it, with automatic fail over when one has a bad day. This is the capability that justified the move — no traditional billing platform offers it.
MRR, churn, LTV, and cohorts calculated one way, from one source,across every processor — instead of exports from a billing toolreconciled against each gateway’s own dashboard.
Adaptive retries, recovery emails, and configurable failure handling are part of the billing layer — not a bolt-on with its own subscription, it
Authorization rates by processor, card type, and region, side by side —the visibility that turns “which processor is underperforming?” from a quarterly mystery into a dashboard row.
Free resource
Every step, in order, with the gotchas flagged
The same checklist we walk migrating teams through — from platform audit to final decommission, including the two mistakes that cause real damage: canceling old subscriptions before confirmation, and migrating mid-cycle.
One email with the checklist PDF. No sequence, no sales follow-up unless you ask.
FAQ
Tell us what you’re on today and we’ll map the batches, the token plan, and the timeline — before you commit to anything.
