QuickBooks Integration for React/Next.js Application

Job ID: 39281991

Budget: $150 – $350 USD

Objective:
Extend the functionality of an existing React/Next.js application backed by Supabase by integrating the QuickBooks Online API. This integration will allow the application to sync customer data between Supabase and QuickBooks, enabling automatic invoice generation and improving operational efficiency.


---

Key Features & Functionality

1. QuickBooks Online API Integration

Implement OAuth2 authentication to securely connect with QuickBooks Online.

Enable bi-directional read/write access to the QuickBooks customer database.

Ensure secure handling and storage of tokens and sensitive credentials (e.g., using Supabase secrets or encrypted environment variables).


2. Customer Matching Interface

Develop a dedicated UI that displays two side-by-side lists:

Left Panel: Supabase customers

Right Panel: QuickBooks customers


Each customer entry will show:

Full Customer Name

Address (Street, City, State, Zip)


Both lists will be sorted alphabetically by customer name for easy navigation.


Matching Logic & Features:

The system will attempt to auto-suggest potential matches based on customer address similarity (using fuzzy logic or string matching).

Auto-matched customers will be visually paired side-by-side in the UI.

Users can manually match customers by:

Clicking a checkbox on one Supabase customer.

Clicking a checkbox on the corresponding QuickBooks customer.

Clicking a "Sync" button to confirm the match.



Once matched:

The QuickBooks unique customer ID is saved to a new field (quickbooks_customer_id) in the corresponding Supabase customer record.


3. Customer Import from QuickBooks

If a QuickBooks customer does not have a match in Supabase, the user can import them as a new Supabase customer record.

During import:

All relevant customer information is saved in Supabase.

The QuickBooks customer ID is added.

The customer address is run through the existing GraphHopper integration to fetch latitude and longitude, which is saved alongside the record.



4. Address Geolocation with GraphHopper

Taps into existing GraphHopper geocoding logic already present in the application.

Ensures that all imported or updated customer records have geographic coordinates based on their address.