Switching Pilates Booking Software Without Losing Clients or Data

You've decided to leave your booking software. Maybe it's the fees, maybe it's a tool built for group classes when you teach mostly privates, or maybe it's just the third price change this year. The decision is the easy part. The part that keeps owners up at night is the move itself: what if pack balances come across wrong, a regular's standing Tuesday disappears, or clients can't log in on the first Monday?

Switches go wrong in a handful of predictable places. This piece walks through them in order: what to export before you cancel, how to handle clients, packs and future bookings, how to tell clients, and whether to run two systems for a while. It also shares what we learned when the studio our software was built in moved off its old system. There's no single right way to do it, so each section lays out the options.

Before you cancel: what to export, and when

The order matters. Many owners find it easiest to export everything before giving notice, while they still have full access and nobody is rushing them.

Read your agreement first. A few things worth looking up:

• The notice period, and whether you're inside an annual term.
• Which exports are included in your plan, and whether a full data export carries a fee. Some platforms charge for it.
• How long you can still log in after cancelling. Some limit access to a short window.
• Whether stored client cards can be transferred to a new payment processor, and how.

If anything is unclear, asking your current provider in writing gives you an answer you can refer back to.

Then export what you can. Here's a checklist. Not every system offers every report, and not every studio needs every item.

• Client list: names, mobile numbers, emails, birthdays if you use them
• Active packs and memberships: what each client has, sessions left, expiry dates
• Future bookings: who is booked when, through at least the next two months
• Visit history: past sessions per client
• Sales and payment history, for your books
• Client notes, injuries and health history you're entitled to keep
• Unpaid balances and open invoices
• Gift cards or credits outstanding
• Staff and pay records, if you have teachers

Sales and payment records matter beyond the switch. The IRS page What kind of records should I keep says businesses "should keep supporting documents that show the amounts and sources of your gross receipts." Saving those exports somewhere safe, outside both systems, is a sensible habit. How long to keep them is a good question for your accountant. This isn't tax or legal advice.

Open each file before you cancel. An export that looks complete can be missing a column you need. It's much easier to fix while you still have access.

Clients, packs, balances and future bookings

These four things move differently.

On a Pilates Business Podcast episode from October 2025, host Seran Glanfield talked through switching with a guest who leads the studio-owner success team at Arketa. It's a vendor's view, but much of it applies anywhere. A few points from it:

• Simplify packs during the move. Rather than recreating every past pack version, one option is to give each client a standard pack with the right number of sessions left. As the guest put it, "essentially it's just a credit to come and take the class."
• Clean up as you go. Merge duplicate profiles and decide which history is worth bringing over.
• Plan time for cards. Moving stored cards between payment processors is handled by third parties and can take about four weeks. If it doesn't happen, "clients may need to add a credit card to file."

For private studios, future bookings deserve special care. A regular's standing slot often exists only as a string of individual bookings in the old system. If those don't come across, that slot may look free in the new one. Some owners print or export the next eight weeks of the schedule and check it line by line against the new calendar before the old one goes dark.

Telling clients

Most private clients care about two things: their next session is still on, and their pack balance is right. A short, warm message covering both tends to go a long way.

The podcast episode above suggests telling clients ahead of time, using a page or banner on your website with how-to and FAQs, and giving any staff a one-page guide, since many questions turn out to be login issues. It also frames the switch as a chance to update policies or reconnect with clients who've drifted.

Here's a sample text some owners adapt:

Hi Carol, a quick heads-up: from Monday, November 3, I'm moving to a new booking system. Your Tuesday 10am sessions stay exactly the same, and you have 7 sessions left on your pack, which carry over. You'll get a message from the new system on Monday. If anything looks off, just reply and I'll fix it.

Owners differ on timing. Some tell clients a week or two ahead. Others wait until a few days before, so the message is fresh. Including the client's actual balance in the message lets her spot an error early, which is easier than finding it at session six.

Running two systems for a week

Many owners run both systems side by side for a short time. The podcast guest suggested keeping access to the old system for two to four weeks after launch.

Options here:

• Full overlap. New bookings go in the new system, and you check each day against the old one. Safest, and the most work.
• Read-only overlap. The old system stays open for reference only. Less work, and you can still look things up.
• Clean cut. One day you stop using the old one. Quickest, but only comfortable if your exports are complete and checked.

A quiet week, like a holiday week or the end of summer, gives more room for any of these.

What we learned from our own move

When the classical studio in Santa Barbara where our software was built moved off its old booking system in 2026, a few things went differently from the plan:

• The export had no future bookings. The schedule for the coming weeks had to be carried over separately. We hadn't expected that.
• Many clients came across without a usable mobile number. Each one had to be checked and filled in by hand, which matters a lot when the new system works by text.
• Some emails were placeholders. A number of records carried dummy addresses that had to be cleared out.
• Some recent sessions were only on paper. The owner had kept the latest months in a handwritten notebook, so those sessions had to be entered from photos of the pages.
• A shared pack needed a manual fix. Two clients shared one pack, and that had to be set up by hand.

None of these was a disaster, but each took time. If we did it again, we'd check for each of them before choosing a cutover date.

If you're considering us

This is the problem we built Wundaful for, especially for private-heavy studios. At setup you can send a spreadsheet of your clients, including the client export from your old system. It reads names, mobile numbers, emails, sessions left and pack expiry from it, and asks you which column holds the phone number if it can't tell. Future bookings are a separate step, so it's worth keeping that schedule export handy. According to our pricing page, there's no annual contract and you can cancel whenever you like.

Other tools may suit you better, especially if you run a big group timetable or need card payments built in today. Whatever you choose, the same steps apply.

Questions to help you decide

• What does your current agreement say about notice, exports and access after cancelling?
• Have you opened every export file and checked it for the columns you need?
• Which of your regulars have standing slots, and how will you check they carried over?
• Do any clients share packs or have unusual balances that need a manual note?
• How much overlap between systems can you manage this month?
• When is your quietest week for a cutover?

Sources

1. What Really Happens When You Switch Booking Apps with Maggie from Arketa: The Pilates Business Podcast, Seran Glanfield, October 6, 2025.
2. What kind of records should I keep: Internal Revenue Service, last reviewed August 3, 2026.
3. Wundaful pricing: Wundaful, accessed October 28, 2026.