CoolConnect: Cool Running sales into QuickBooks Online
In short
An integration portal that sends each ice company's route sales from Cool Running into its own QuickBooks Online company as customers, invoices, credit memos and payments. P26 built it for a client in United States. Industry: SaaS, API Integration, FinTech.
- Industry
- SaaSAPI IntegrationFinTech
- Location
- United States
- Year
- 2025
- What we did
- Build
- Live product
- Visit live site ↗
- Video
- Case study
- Download PDF ↓
The impact
- Weeks earlydelivered ahead of the agreed date
- 90%%less time spent entering route sales into QuickBooks
- 1 exportsends a day's customers, invoices and payments across
- 3 phasescustomers and items, then invoices and credit memos, then payments
- 1 per companyeach ice company connects its own QuickBooks Online
Watch
A day's sales in QuickBooks, in one export.

Summary
Cool Running Software, in Ohio, runs routes, deliveries and invoicing for ice companies. Their bookkeepers then typed the same sales into QuickBooks by hand: every customer, invoice and payment, every day.
Cool Running wanted its ice companies to connect their own QuickBooks and send the day's sales across in one go, following the way Cool Running handles terms, surcharges and private-label receipts.
What we did
Connect
- Sign in with the Cool Running account and pick a licence
- Each ice company connects its own QuickBooks Online company through Intuit's sign-in
Export
- The day's sales by export group and date
- Customers, items with surcharges, terms, payment methods, classes, locations and tax codes set up on the way
- Invoices, credit memos for negative sales, and payments for cash, card and check sales
Reliable
- Three-phase export through the QuickBooks Batch API, 30 at a time, with retries
- Duplicates caught, errors saved on each sale, every run logged
Under control
- Edit a receipt number before export, view a sale's full data
- Unmark a sale in Cool Running and send it again
Built with
- Python
- FastAPI
- SQLAlchemy
- MySQL
- QuickBooks Online API
- Angular
- Tailwind CSS
- Docker
P26 delivered our QuickBooks API weeks before it was due. They took the time to understand our unique business rules and handled adjustments with great patience. We couldn't be more pleased with their work and have already signed them for a much larger development project. Highly recommended for international collaboration.
Tony DicksonOwner, Cool Running SoftwareMore work.
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