A booking marked paid with no payment
Nobody compared it with PayPal.
BoldBellowsSimplyBook.me to PayPal automation for businesses that take deposits and full payments through PayPal
SimplyBook.me to PayPal automation that matches every transaction to its booking, flags short or unmatched payments and holds each refund for a person to approve
SimplyBook.me to PayPal integration matters most when money and calendar disagree. When payment is required at booking time, an invoice is attached to the booking, and PayPal reports the result separately, with amounts and currency carried as text rather than loose numbers. BoldBellows records the booking ID, the invoice and the amount SimplyBook.me expects, reads the booking and its payment state from the API and waits for PayPal to report the transaction before it compares the two, then compares the booking, the invoice and the PayPal transaction, and records one verdict: paid, short, unmatched or refunded. A refund after a cancellation is prepared with its evidence and waits for a person. Connect SimplyBook.me to PayPal this way and the books match the calendar.
View Pricing
From $995, billed once.
- Connect SimplyBook.me to PayPal
- Paid, short or unmatched, decided
- Refunds approved by a person
Five checks before the SimplyBook.me route goes live
- Matched by referencethe booking ID ties a transaction to its booking
- Short payments flaggedan amount that differs is listed, not ignored
- Refunds waitingnothing moves until a person says yes
- Repeat actions safea PayPal request ID makes a retry harmless
- Written handoverThe route, the controls and the repair steps arrive as a PDF
- Quoted before you committhe Foundation package begins at $995 and the total is visible before checkout
01the paid-or-not problem
A booking that says paid is only as good as the transaction behind it
The calendar shows a confirmed booking, the PayPal balance shows a payment, and nobody has checked that they are the same payment. A client pays a deposit, cancels, and waits for a refund that sits in someone's inbox. Another books twice, pays once, and the second visit is never questioned. Month-end means opening both systems side by side and matching names by eye.
A deposit never refunded
The cancellation sat in an inbox.
A short payment unnoticed
The amount differed by a fee or a currency.
SimplyBook.me bookings and PayPal payments, finally agreeing
Before: one payment record per notification
- Every event is written as it arrives
- Paid status is trusted without a check
- Refunds wait in someone's inbox
After: judged first, written once
- Each write is keyed on the booking ID carried as the PayPal invoice reference
- Every payment is compared with its booking
- Each refund is decided by a named person
02how it works
How a SimplyBook.me booking becomes a payment you have proved and a refund you have approved
A change is admitted, identified, matched and written, always in that order.
- Receive and qualify. The notification is authenticated, stamped with account, resource and time, then checked against the admission rule.
- Read, fetch, compare. The booking and its invoice are read, the PayPal transaction is fetched by reference, and amount and currency are compared.
- Decide, hold, record. The verdict is recorded, refunds are prepared with their evidence for a named approver, and any action uses a request ID so a retry is safe.
Behavior of SimplyBook.me and PayPal we design around
- Payment depends on the processor. When payment is required at booking time, an invoice is attached to the booking and the processor the company chose reports the result, so the build reads payment state from the invoice and the processor together.
- A request ID makes retries safe. PayPal accepts a PayPal-Request-Id header on many of its write requests so that a repeated request returns the first result instead of creating a second one, and amounts are sent as text with a currency code.
- If a reply is lost. The route reads PayPal through the booking ID carried as the PayPal invoice reference to learn whether the write landed, then acts on the answer.
03Everything inside the box
Inside the PayPal checks, what matches, flags and holds
Foundation sets the rules and the key. Operations does the writing. Assurance compares both sides over time.
FoundationOperationsAssurance
Admission rule engine Foundation
Decides which SimplyBook.me events may proceed and logs why the others were set aside.
Stable identity ledger Foundation
Pairs every SimplyBook.me record with its PayPal counterpart in a ledger you can read.
Allowlist mapper Foundation
Maps approved SimplyBook.me fields to PayPal fields one by one and rejects anything not on the list.
Payment matcher Operations
Decides between create, update and leave alone by reading the booking ID carried as the PayPal invoice reference.
Request-ID guard Operations
Attaches a stable request ID to each action so a retried refund request cannot run twice.
Refund and approval matrix Operations
Decides by cancellation timing and policy which refunds are prepared and who approves each.
Payment register Assurance
Lines up SimplyBook.me and PayPal on a schedule and lists what no longer agrees.
Mismatch monitor Assurance
Lists short, unmatched and duplicate payments before month-end.
Owner queue Assurance
Gives each unresolved SimplyBook.me case a named owner, so nothing waits in a shared inbox.
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04Who it's for
Built for franchise owners with several SimplyBook.me locations, and for anyone who must know which bookings are paid, which are short and which refunds are waiting for a decision
SimplyBook.me holds the booking; PayPal holds the money, and a business needs to know the two tell the same story.
Finance lead
"Prove every booking is paid."
Each paid booking points to the PayPal transaction behind it.
Studio owner
"Handle refunds fairly."
Cancellations create a refund request with the policy applied for you to approve.
Bookkeeper
"Match at month-end."
A list of unmatched and short payments is ready before you start.
Front-desk lead
"Answer 'did you get my deposit?'"
The booking shows whether PayPal has the payment.
Multi-location manager
"One PayPal account per branch."
Bookings are matched inside the account that took the payment.
Founder
"Nothing leaves without a name on it."
Every refund waits for a person to approve it.
05Compare
Three ways to connect SimplyBook.me and PayPal: a PayPal payment link on the booking page, a zap, or a payment-checking and refund-approval route
Each can take a payment. Only one checks it against the booking and leaves every refund to a person.
| How a run begins | A payment link | A basic SimplyBook.me PayPal zap | Our payment and approval route |
|---|---|---|---|
| What starts the work | A person spots the update | Every matching hook runs | YesOnly a SimplyBook.me booking change that meets the written rule |
| How identity is decided | Whoever it is checks the name | Email or name, compared as typed | YesThe booking ID as invoice reference, with a request ID for each action |
| What reaches PayPal | Fields typed from memory | Every mapped field, as plain text | YesA verdict per booking and refund requests held for approval |
| After an uncertain result | Someone checks by eye | Retry, or give up | YesSearches by the booking ID carried as the PayPal invoice reference, compares, then repairs |
A late notice follows a newer update
The timestamp on the incoming event is checked first; a stale one is recorded and closed instead of rolling the payment record back.
A client pays a deposit and cancels before the visit
The cancellation is read, the policy is applied, and a refund request with the amount and evidence waits for the approver you named. The route looks for the payment record through the booking ID carried as the PayPal invoice reference, compares it with the intended values and records a verdict: absent, correct, different or unclear. A new payment record is made only when the search proves there is none.
Start the SimplyBook.me to PayPal build with the booking ID carried as the PayPal invoice reference; the rest of the route leans on it.
PricingWhat drives the cost: transactions, refunds and approvals
Cost the payment checks, rule by rule
Three packages, three quick questions and a live total: that is how you price the SimplyBook.me to PayPal build. It starts at $995.
One setup fee · Range shown first · PDF handover included
View Pricing
Pricing
Build your SimplyBook.me to PayPal price
Pick a package, answer three short questions about how SimplyBook.me data should reach PayPal, and your price and turnaround move as you choose.
06The process
Six steps from scattered payments to bookings you can prove
From the first brief to the first month live, six steps with clear outputs.
Choose the rules
We agree which payments are compared, what counts as paid or short, and which cancellations create a refund request.
Approve access
Together we approve what the route may read in SimplyBook.me and where it may write in PayPal.
Agree approvers and limits
Refund approvers, amount limits and the wording of each flag are written down and signed off.
Break it on purpose
We replay events, delay them, remove fields and revoke access in a safe PayPal copy before anything goes live.
Launch with notes
We switch the route on at a checkpoint you approve and leave you with written notes on how it works.
Review after launch
Once real events flow, the opening weeks are checked against the evidence log so early surprises are caught and recorded.
07Turnaround
Timing for the PayPal build
The clock starts once SimplyBook.me and PayPal access are approved.
Foundation
6 to 10 business days
Operations
10 to 16 business days
Assurance
16 to 24 business days
08Before we start
What you supply to begin
Approved, revocable access to the SimplyBook.me side
A PayPal Business account with API credentials, plus PayPal switched on as a payment option in SimplyBook.me
An authorized SimplyBook.me connection for the resources named in scope
Your definition of which booking changes should reach PayPal
Permission to run tests against a copy of PayPal
Your expected volume, so limits and pacing can be set
09Security and ownership
Nothing is installed in SimplyBook.me or PayPal, only mapped data moves
Only agreed SimplyBook.me data leaves, and it goes to one named place in PayPal.
Nothing installed inside either tool
The route talks to SimplyBook.me and PayPal only through documented endpoints, so neither needs a plugin, a patch or a hidden setting.
Scoped, revocable access
Scopes are reviewed with you before launch and again at handover.
Only what the map allows
A written field map decides what crosses. Anything not on it, including private notes and billing data, is left behind.
Search before you write again
After any uncertain result the route looks for the payment record using the booking ID carried as the PayPal invoice reference; only a proven absence allows a new one.
Minimal logging
Logs hold identifiers, times and error types, not your customer content.
Full handover
Handover includes the rules, the owners and the repair steps in one PDF.
10In their words
What BoldBellows clients say
Verified reviews from operations and finance teams who trust BoldBellows to keep their data moving correctly.
AI Workflow Automation for Agencies
Running a digital agency with many clients was overwhelming. BoldBellows built one automation dashboard that tracks tasks, sends updates and creates client reports automatically.
Clients love the transparency and we love the time we get back. Productivity is up, and project delays have dropped to almost zero.
AI Accounting & Invoice Automation
BoldBellows automated our whole invoicing process: creating invoices, sending reminders and tracking payments.
Late payments dropped sharply, and our accounting team finally has time for strategy instead of repetitive admin. Worth every penny.
AI E-commerce Listings Automation
BoldBellows automated our product listings. The AI writes descriptions, organizes photos and publishes listings across several marketplaces.
It even answers customer questions instantly. Our store looks more professional and sales have noticeably increased.
AI Customer Journey Automation
We wanted a smoother path from first contact to purchase. BoldBellows built an AI system that guides each customer there automatically.
It sends personalized messages, recommends products and follows up at just the right moment. Customer retention has improved dramatically.
AI Document & Contract Automation
Onboarding was slow because we wrote every contract by hand. BoldBellows automated the lot: contracts, welcome emails and client setup.
What took 48 hours now takes under 10 minutes, and clients regularly tell us how professional it feels.
AI Social Comment & DM Automation
We get thousands of comments and messages every week. BoldBellows built an AI system that replies instantly, filters spam and surfaces the important ones.
Engagement is up and our page looks active around the clock. It’s like having a full social media team that never stops.
AI CRM Automation
Our CRM was barely used because updating it by hand was tedious. BoldBellows automated data entry, tagging, segmentation and follow-ups.
Now the CRM is always up to date and our campaigns are far more accurate. It improved our whole sales pipeline.
AI Voice Assistant
BoldBellows built a custom AI voice assistant for our customer hotline. It answers questions, books appointments and handles simple requests.
Customers love how fast it is, and our call-centre workload dropped dramatically. One of the smartest upgrades we’ve made.
AI Automation Partner
BoldBellows is hands-down the best AI automation partner we’ve worked with. Their systems are fast, reliable and built around how our business actually works.
Every automation they’ve delivered, from customer service to content, runs flawlessly. We’ve saved time, cut costs and grown faster than we expected.
AI Chatbot & Customer Support
BoldBellows built an AI support chatbot for our online boutique, and it has changed how we run the business. We used to have two full-time staff answering the same questions all day. Now the AI handles order tracking, product recommendations and even refund requests on its own.
What surprised me most is how natural it sounds. Customers compliment the ‘agent’ without realizing it’s AI. Our support workload dropped by 75% and customer satisfaction went up dramatically.
AI Content & Social Media Automation
Our marketing agency couldn’t keep up with content. BoldBellows set up an AI content engine that writes blog posts and captions and even designs our social media creatives.
It spots trends and suggests topics for us, so we stay ahead of competitors. We now produce three times the content with the same team, and engagement has soared. They didn’t just automate our workflow, they lifted our whole brand.
AI Lead Qualification & Sales Automation
Our sales team wasted hours chasing cold leads. BoldBellows built an AI lead-scoring system that reads behavior, email engagement and buying signals.
It filters out weak leads and sends personalized follow-ups automatically, so our team only talks to people who are ready to buy. Conversions rose 40% in the first month. It paid for itself straight away.
AI Video & Voice Automation
We publish product videos every week, and BoldBellows introduced us to AI video automation. The system writes the script, voices it and produces the finished video in minutes.
The quality is remarkable: professional voiceovers, clean visuals and smooth editing. Production time went from three days to under 30 minutes, and we scaled our video marketing without adding cost.
AI Email & Smart Inbox Management
Our inbox used to be chaos. BoldBellows built an AI email system that sorts messages, drafts replies and flags anything urgent.
It learns how we write and gets better every week. We reply faster and no longer miss important messages. It feels like having a personal assistant working around the clock.
AI Booking & Scheduling Automation
Our coaching business needed a better way to schedule. BoldBellows automated all of it: bookings, reminders, cancellations and follow-ups.
No-shows fell by 60% and clients enjoy how smooth it is. It feels personal, not robotic. One of the best upgrades we’ve made.
AI Translation & Localisation
When we expanded abroad we needed fast, accurate translations. BoldBellows built an AI translation system that turns our content into several languages instantly.
The translations read naturally and suit each culture. We now serve customers in five new countries without hiring translators. BoldBellows helped us go global.
AI HR & Recruitment Automation
Our HR team was drowning in applications. BoldBellows automated screening, skills-based filtering and interview scheduling.
It saves us hours every week and means we only interview qualified people. Hiring is now faster, better organized and more professional.
AI Data Entry & Reporting Automation
We used to spend hours collecting data and building weekly reports by hand. BoldBellows automated all of it.
The reports are clean, visual and easy to read, and our managers rely on them for quick decisions. Human error is gone and our numbers are more accurate across the board.
11FAQ
PayPal, deposits and refunds: what studio owners and finance leads ask
A handful of honest answers before you spend anything.
We tried a SimplyBook.me to PayPal Zapier flow; what changes?
When a payment taken when a client books is all that is wanted, a connector can manage that. It cannot match every PayPal transaction to its booking, flag the ones that disagree and put each refund in front of a person before anything moves. Those gaps are the reason this build exists.
Can SimplyBook.me and PayPal agree on which bookings are paid?
The route reads each booking's invoice and the matching PayPal transaction and records one verdict per booking.
Does it move money?
Not by itself. The route prepares a refund request, and nothing is sent until the approver you named says yes.
What if a client pays a different amount?
The booking is listed as short or over, with both amounts, and a person decides what to do.
What happens when PayPal reports twice?
The transaction is matched by reference, so a repeat finds the verdict that exists.
Can older PayPal payments be checked too?
Earlier bookings and transactions are compared in batches that can be paused and resumed, and every mismatch is listed.
Can PayPal change a booking?
No. The route reads PayPal and SimplyBook.me and never edits a booking.
Will you map custom fields as well in the SimplyBook.me to PayPal route?
Absolutely. Nothing reaches PayPal until the SimplyBook.me PayPal field mapping service has your approval on the page.
Is a tailored workflow possible, or only a standard one on the SimplyBook.me to PayPal route?
Yes. Anything you can state as a rule can become part of a custom SimplyBook.me workflow for PayPal. That includes SimplyBook.me PayPal integration consultant advice, from $995.
What happens if SimplyBook.me or PayPal changes something later?
You get a list of the interfaces we rely on. When one shifts, the affected records hold and you are told. Later maintenance is quoted on its own.
Next stepKnow which bookings are really paid
Give PayPal a booking for every transaction
Hand us the trigger and the target, and we return the means to automate SimplyBook.me data to PayPal, with tests and documentation, starting at $995.
- From $995, paid once
- Matched by reference
- Refunds approved
- No monthly fee from us
Anything outside the listed packages gets its own quote before work starts.