Illustrative previewA build-to-order WooCommerce plugin that connects your store to Square for card and digital-wallet checkout,
real-time POS inventory sync, and webhook-driven order reconciliation.
ECOSIRE builds, installs and supports it on your WordPress site.
What is Square for WooCommerce (Pro)?
A build-to-order WooCommerce plugin that connects your store to Square for card and digital-wallet checkout, real-time POS inventory sync, and webhook-driven order reconciliation. ECOSIRE builds, installs and supports it on your WordPress site. Built to order by ECOSIRE for WooCommerce (build-to-order) — indicative price from $999.00 USD; request a quote for a scoped proposal.
Key Features
Built to order, done for you
No DIY setup — a working app, built, installed and supported by ECOSIRE.
- 1
You order
Start with a one-time build price. We scope it with you at kickoff.
- 2
We build & install
ECOSIRE builds, configures and installs it on your WooCommerce.
- 3
Go live + support
You go live in about one working week, with two weeks of go-live support. Defects in the code we deliver are fixed free of charge.
About this Product
Square for WooCommerce (Pro) closes the gap between your WooCommerce storefront and your Square point of sale, so a sale on the floor and a sale on the web draw from the same stock and settle through the same processor. This is a build-to-order plugin: ECOSIRE builds it to your catalog, installs it on your WordPress site, and supports it afterward. There is no instant marketplace download — you get a plugin configured for your store.
On checkout, the plugin renders the Square Web Payments SDK card fields and tokenizes payment client-side, so raw card data never touches your server (PCI SAQ-A scope). It adds Apple Pay, Google Pay and Cash App Pay as native Square payment methods, registered through the standard WC_Payment_Gateway API and selectable like any WooCommerce gateway.
Inventory stays in sync both ways. A catalog.version.updated or inventory.count.updated event from Square fires a webhook into your site; an order placed in WooCommerce pushes the stock change back to Square. Sync runs on Square webhooks with a WP-Cron reconciliation pass as a safety net, mapping each WooCommerce product/variation to its Square catalog_object_id.
It is built HPOS-aware (WooCommerce custom order tables), stores Square IDs in order meta, and writes refunds back to Square when you refund in wp-admin. Gift card and loyalty hooks are exposed via WordPress actions/filters so your team — or ours — can extend behavior. Optional WPML and multisite handling is scoped per build. Everything is configured under WooCommerce → Settings → Payments, with credentials and webhook signature key stored server-side.
What you get
- Custom-built Square for WooCommerce (Pro) plugin packaged for your specific catalog and Square account
- Installation and configuration on your live WordPress/WooCommerce site by ECOSIRE
- Square application setup guidance: OAuth/access token, location mapping and webhook subscription registration
- Product-to-Square catalog mapping for your existing products, variations and SKUs
- Sandbox validation of card, Apple Pay/Google Pay/Cash App Pay, refund and inventory-sync flows before go-live
- Short admin handover document covering settings, sync behavior and how to extend the gift-card/loyalty hooks
- Post-delivery support window for fixes and WooCommerce/Square API compatibility updates
Who this is for
Omnichannel retailer with a Square counter and a WooCommerce store
Runs a physical shop on Square POS and sells the same products online. Needs one stock count across both so the website never oversells what just left the shelf, and wants web payments settling into the same Square account.
Boutique or specialty store scaling online
Started on Square in-store, now growing WooCommerce sales. Wants Apple Pay, Google Pay and Cash App Pay at online checkout and refunds handled from wp-admin without logging into the Square dashboard separately.
WordPress agency or freelance developer serving a Square merchant
Needs a clean, HPOS-aware integration installed on a client site with documented action/filter hooks for gift cards and loyalty, rather than stitching together a brittle custom build under deadline.
How Square for WooCommerce (Pro) Compares
| Criterion | ECOSIRE | Custom Build | Competitor | WooCommerce Native |
|---|---|---|---|---|
| Built and installed for you on your own WordPress site (no DIY assembly) | Included | Partial support | Not included | Not included |
| Real-time two-way inventory sync with Square POS | Included | Partial support | Partial support | Not included |
| Apple Pay, Google Pay and Cash App Pay via Square | Included | Partial support | Partial support | Not included |
| HPOS-aware (WooCommerce custom order tables) | Included | Partial support | Partial support | Included |
| Refunds and order status synced back to Square via webhook | Included | Partial support | Partial support | Not included |
| Gift card and loyalty extension hooks (actions/filters) | Included | Partial support | Not included | Not included |
| Tailored to your exact catalog, locations and SKUs at build time | Included | Included | Not included | Not included |
| Instant self-service download from a marketplace | Not included | Not included | Included | Included |
| Automatic background updates pushed from a marketplace | Partial support | Not included | Included | Included |
Frequently Asked Questions about Square
How long does delivery take, and is this an instant download?
It is not an instant marketplace download. This is built to order: after purchase ECOSIRE configures the plugin for your catalog and Square account, then installs it on your WordPress site. A typical build is delivered and live within about 5 to 10 business days, depending on catalog size, the number of Square locations, and any WPML/multisite requirements. We confirm a firm timeline with you before starting.
What do I get for ongoing support and updates after delivery?
Every build includes a post-delivery support window for bug fixes and compatibility updates against WooCommerce, WordPress and the Square API. Because the plugin is installed on your own site, updates are applied by ECOSIRE rather than pushed automatically from a marketplace. After the included window, you can extend support with a maintenance arrangement; the plugin keeps working without it, but new WooCommerce/Square API changes may eventually need an update.
Does inventory really sync in both directions in real time?
Yes. We subscribe to Square inventory and catalog webhooks so that when stock changes at the POS, your WooCommerce stock updates within seconds. When a WooCommerce order is placed, the stock change is pushed back to Square. A WP-Cron reconciliation pass runs on a schedule to catch anything a webhook missed and repair drift, so the two systems stay aligned even after downtime.
Is it compatible with HPOS (WooCommerce custom order tables) and recent WooCommerce versions?
Yes. The plugin is built HPOS-aware and reads and writes order data through the WooCommerce order CRUD APIs rather than legacy post meta directly, storing Square payment, order and location IDs against the custom order tables. We test against your current WooCommerce and WordPress versions during the build and validate in a sandbox before go-live.
How are card payments handled, and what about my PCI scope?
Checkout uses the Square Web Payments SDK, which tokenizes card details in the browser before they ever reach your server, so raw card numbers do not pass through WordPress. This keeps your store in PCI SAQ-A scope. Apple Pay, Google Pay and Cash App Pay are added as native Square payment methods. Final PCI responsibility still depends on your overall hosting and configuration, which we are happy to advise on.
Can it handle gift cards, loyalty, and multiple Square locations?
The plugin exposes WordPress actions and filters as extension points for Square gift card and loyalty behavior, so your developers — or ECOSIRE — can hook in custom logic; full gift-card/loyalty flows are scoped per build rather than enabled blindly. Multi-location is supported by mapping WooCommerce stock to a chosen Square location, so your floor and your website draw from the same counts.
Related Modules
Singapore InvoiceNow (Peppol) E-Invoicing for WooCommerce
A build-to-order WooCommerce plugin that turns every order into a valid IMDA InvoiceNow / Peppol BIS e-invoice and routes it through your IMDA-accredited Access Point using the IRAS 5-corner GST transmission model. Built, installed, and supported on your site by ECOSIRE.
Smart Payment Method Reordering & A/B Testing for WooCommerce
A build-to-order WooCommerce plugin that reorders, default-selects and A/B tests payment gateways by customer segment, with per-gateway conversion analytics. Built, installed and supported on your site by ECOSIRE.
Stripe / Multi-Gateway Payment Links & Pay-by-Link for WooCommerce
A custom-built WooCommerce plugin that generates shareable Stripe and multi-gateway payment links so you can collect payment for orders, quotes and invoices outside the standard checkout. Built, installed and supported by ECOSIRE on your own WordPress site.
Stripe Payment Gateway for WooCommerce (Premium)
A premium Stripe payment gateway for WooCommerce — cards, Apple/Google Pay, SEPA and 135+ currencies with SCA-ready Payment Intents — custom-built, installed and supported on your WordPress site by ECOSIRE.
Square
A build-to-order WooCommerce plugin that connects your store to Square for card and digital-wallet checkout, real-time POS inventory sync, and webhook-driven order reconciliation. ECOSIRE builds, installs and supports it on your WordPress site.
- Square Web Payments SDK checkout — card fields are tokenized client-side, keeping your site in PCI SAQ-A scope (no raw PAN on your server)
- Apple Pay, Google Pay and Cash App Pay registered as native WooCommerce gateways via the WC_Payment_Gateway API
- Two-way real-time inventory sync: Square inventory.count.updated webhooks update WooCommerce stock, and WooCommerce orders push stock back to Square
- Product mapping layer linking each WooCommerce product/variation to its Square catalog_object_id, including variations and SKUs