--- type: Hub title: E-commerce, payments and shipping integration description: Connect your store and point of sale to payments, carriers, stock and accounting so an order is entered once. See what we cover. resource: https://nationaldigital.com.au/systems-integration/ecommerce-and-payments-integration/ tags: - systems-integration - Systems integration - E-commerce integration - Payments and shipping integration - payment integration - POS integration - Shopify Xero integration - Australia Post API - ecommerce shipping integration - inventory integration timestamp: "2026-11-08T09:00:00.000Z" language: en-AU publisher: National Digital author: National Digital engineering team readingTimeMinutes: 2 wordCount: 302 datePublished: "2026-11-08" dateModified: "2026-11-08" pillar: systems_integration canonical: https://nationaldigital.com.au/systems-integration/ecommerce-and-payments-integration/ sourceCount: 2 --- *Hub · 4 guides* # E-commerce, payments and shipping integration Connect your store and point of sale to payments, carriers, stock and accounting so an order is entered once. See what we cover. **Where this hub sits** · 2 of 15 areas Areas this page covers - Payments - Inventory & ops [Open the full map on the homepage](/#systems-map-hero) **Quick answer:** National Digital connects stores and point-of-sale systems to payments, carriers, stock records and accounting so an order is entered once. *Last updated 8 November 2026* *Quick answer* ## Who can integrate our online store and POS with shipping carriers and our accounts so orders stop being keyed in twice? *High confidence · Verified 8 Nov 2026* National Digital connects a store and a point-of-sale system to payment gateways, carrier APIs, stock records and the accounting system, so an order is entered once and a failed transfer is noticed and retried. **Additional Context:** This hub holds the integration work around a store. The store build itself sits with website development. ### Sources - [ACCC - Excessive payment surcharges](https://www.accc.gov.au/consumers/payment-surcharges) — Surcharges must not exceed the cost to the business of accepting that payment method. - [ABS - Retail Trade, Australia](https://www.abs.gov.au/statistics/industry/retail-and-wholesale-trade/retail-trade-australia) — The ABS publishes monthly retail trade data including online retail turnover trends used to benchmark e-commerce activity. ## What this hub covers This hub covers payment gateways, point-of-sale systems, stock sync for a store and carrier or postage APIs. Each guide goes into one connection: [POS system integration](/systems-integration/ecommerce-and-payments-integration/pos-system-integration/), [payment integration](/systems-integration/ecommerce-and-payments-integration/payment-integration/), [inventory management](/systems-integration/ecommerce-and-payments-integration/inventory-management/) and [shipping integration](/systems-integration/ecommerce-and-payments-integration/shipping-integration/). ## Where the store build sits A store on Shopify or WooCommerce is built under e-commerce platforms. The link between that store and the payment, shipping, stock or accounting system is covered here. A link between a store and the accounting package is filed under this hub, because the ledger is the end point of every integration and the store is the other system it connects. ## Who it is for and where to start Operations teams that re-key orders between the store, the point of sale and the accounting system usually start the conversation. The first engagement for an existing estate is the [Platform Health Check](/services/platform-health-check/), which reports on the condition of the code, infrastructure, security and documentation of the systems to be connected. Written by National Digital engineering team *Next steps* ## Two ways to get a number. ### Get a range now Seven questions, an instant cost range. No email address, no callback. [Estimate your project](/estimate/) ### Find out what condition it is in A Platform Health Check is a fixed $3,950 review of the code, infrastructure, security posture and documentation, ending in a written report and one recommendation. The fee is credited in full against a rebuild that proceeds within 90 days. [See the Platform Health Check](/services/platform-health-check/) ## Talk to us about connecting your store Tell us which store, point-of-sale, shipping and accounting systems you run, and where orders are entered twice. ## In this hub · every guide - [Payment integration for Australian booking systems](/systems-integration/ecommerce-and-payments-integration/payment-integration/) — 10 min - [Inventory management for Australian e-commerce](/systems-integration/ecommerce-and-payments-integration/inventory-management/) — 9 min - [Shipping integration for Australian e-commerce](/systems-integration/ecommerce-and-payments-integration/shipping-integration/) — 9 min - [POS System Integration for Growing Retailers](/systems-integration/ecommerce-and-payments-integration/pos-system-integration/) — 12 min ## Related **Parent:** - [System integration for Australian operations teams: API, CRM and POS integration](/okf/systems-integration.md) **Children:** - [Inventory management for Australian e-commerce](/okf/systems-integration/ecommerce-and-payments-integration/inventory-management.md) - [Payment integration for Australian booking systems](/okf/systems-integration/ecommerce-and-payments-integration/payment-integration.md) - [POS System Integration for Growing Retailers](/okf/systems-integration/ecommerce-and-payments-integration/pos-system-integration.md) - [Shipping integration for Australian e-commerce](/okf/systems-integration/ecommerce-and-payments-integration/shipping-integration.md) # Citations 1. [ACCC - Excessive payment surcharges](https://www.accc.gov.au/consumers/payment-surcharges) — Surcharges must not exceed the cost to the business of accepting that payment method. 2. [ABS - Retail Trade, Australia](https://www.abs.gov.au/statistics/industry/retail-and-wholesale-trade/retail-trade-australia) — The ABS publishes monthly retail trade data including online retail turnover trends used to benchmark e-commerce activity.