The Business Behind the Problem

Auto Resolve is an automotive service company partnered with XPEL to provide paint protection film and window tint services to a wide network of car dealerships across Texas. As the business grew, so did the daily volume of invoices flowing in from XPEL's proprietary back-office system.

Each invoice needed to be reviewed, parsed, and entered into QuickBooks Online to ensure accurate, timely billing to dealership clients. The business operated on a lean two-person structure: Chris managed sales and dealership relationships, while Rachael handled all bookkeeping and invoicing operations. When invoices arrived from XPEL, one person — Rachael — was responsible for manually processing every single one.

That worked. Until it couldn't.

A Single Point of Failure Running at Full Load

The invoicing process was entirely manual. Every invoice arriving from XPEL had to be individually reviewed and entered into QuickBooks Online by hand — one at a time, every day. With a high and growing volume of dealership invoices to process, the operational strain was real.

• ✕Single point of failure. One person handled all invoice entry. If that person was unavailable for any reason, invoicing operations stopped completely.
• ✕Inconsistent invoice formats. XPEL's system produced multiple invoice formats depending on the dealership, requiring manual interpretation every time a new format appeared.
• ✕API token expiration. QuickBooks Online access tokens expired frequently, causing existing partial automation attempts to break without warning or notification.
• ✕Zero visibility on failures. When invoices failed to process, no one was notified until a client complained or a payment was missed — by which point the damage was already done.
• ✕Volume growth was unsustainable. As the dealership network expanded, manual processing couldn't scale with it. The process was already at capacity.

A Fully Automated, Self-Monitoring Invoice Pipeline

We designed and implemented an end-to-end automated invoicing pipeline connecting XPEL's proprietary system to QuickBooks Online — with Zapier as the automation backbone, DocParser handling PDF invoice parsing, Google Sheets managing pricing tier logic, and Slack providing real-time visibility into every transaction, successful or not.

• 1Webhook trigger. XPEL's system fires an invoice event; Zapier catches it instantly — no polling, no delay.
• 2Data parsing and formatting. Customer names and invoice numbers are automatically cleaned of extra characters, inconsistencies, and format variations across all dealerships.
• 3Customer lookup in QuickBooks Online. The system finds the correct client record automatically — no manual searching required.
• 4Pricing tier logic. A Google Sheets rule lookup determines whether Default Tier or Custom Tier pricing applies for each dealership.
• 5JavaScript data structuring. All required line-item data is formatted correctly for accurate invoice creation in QuickBooks.
• 6Product ID lookup in QBO. XPEL line items are matched to the correct QuickBooks product records automatically.
• 7Invoice creation in QuickBooks Online. A complete, accurate invoice is generated and posted without any human involvement.
• 8Slack alerts on every outcome. Success notifications confirm each invoice. Error alerts fire immediately if any step fails — nothing slips through unnoticed.

Discovery to Live System

Before vs. After