A build-to-order Shopify POS extension that lets you keep selling during internet outages — full offline cart, receipt printing, queued orders and conflict-safe resync when connectivity returns. One-time license from $249.00 USD for Shopify (build-to-order) — includes 12 months of updates and support.

A build-to-order Shopify POS extension that lets you keep selling during internet outages — full offline cart, receipt printing, queued orders and conflict-safe resync when connectivity returns.
अभी कोई भुगतान नहीं। यह हमारी टीम को एक कोटेशन अनुरोध भेजता है — हम कीमत और अगले चरणों के साथ ईमेल द्वारा संपर्क करेंगे।
Advanced Offline POS is a custom Shopify POS extension that keeps your registers selling when the internet does not. When connectivity drops, the app switches to a local-first cart backed by an on-device inventory cache, so staff can scan, ring up, take payment and print receipts without a live connection — then everything auto-resyncs to Shopify the moment you are back online.
Offline cart, checkout and tax/discount handling that works with no connection from a local-first POS UI Extension
Receipt printing while offline via your existing Shopify POS-supported printer hardware
Local inventory cache of products, variants, prices and barcodes for instant offline product lookup
Queued offline orders that auto-replay to Shopify through the Admin GraphQL API when connectivity returns
Conflict-safe inventory reconciliation against Shopify multi-location inventory levels, flagging oversells instead of silently overwriting
Offline customer lookup from the cached customer list so loyalty and contact details still attach to the sale
This is not an instant App Store download. ECOSIRE builds, installs and supports it for your specific store, theme of operation and hardware. We provision it as a Shopify POS UI Extension (Point of Sale extension) plus a private app authenticated via OAuth with scoped access to the Admin GraphQL API. Product, variant, price and multi-location inventory data are cached locally for fast offline lookup; completed offline sales are held in a durable queue and replayed as orders through the Admin API when the device reconnects.
Because retail outages create real inventory drift, the app reconciles carefully: stock movements are applied against Shopify's multi-location inventory levels with a conflict-safe strategy, and edge cases (oversold variants, duplicated queue entries) are flagged rather than silently overwritten. Order, payment-method and tender metadata are preserved using order metafields so your back office sees a clean, auditable record.
Typical fit: shops in low-connectivity locations, pop-ups, weekend markets and event stalls where a dropped connection currently means a stopped till. We scope your exact tender types, receipt format, printer model and inventory rules during onboarding, then deliver a tested, installed extension. A one-time build fee of $249 covers design, build and installation; ongoing support and Shopify-API compatibility updates are available as an arrangement we agree with you.
A shop owner in an area with unreliable internet who loses sales every time the connection drops. They need the till to keep working through outages and reconcile cleanly once the line is back.
A seller running weekend markets, fairs or event stalls on patchy mobile data. They need fast offline scanning, payment and receipts on a tablet, with sales syncing back to the home store automatically.
An operator running several stores or stalls who cannot risk inventory drift across locations. They need offline sales that reconcile safely against Shopify's per-location inventory rather than overwriting it.
Buy the license on ecosire.com and download the Advanced Offline POS module ZIP from your account dashboard.
Extract the ZIP into your Odoo custom addons folder on the server (or upload via Apps > Install from file on Odoo.sh / runbot).
Activate Developer Mode, open Apps, click Update Apps List, search for Advanced Offline POS, and press Install.
Open the new menu, paste your ECOSIRE license key, connect any external credentials (Shopify, Amazon, Stripe, etc.), and save.
Run the built-in connection test, sync your first 10 records, and schedule the recurring cron. Contact support if anything fails.
| Criterion | ECOSIRE | Custom Build | Competitor | Odoo Native |
|---|---|---|---|---|
| True offline cart, checkout and receipt printing | ||||
| Queued orders auto-resync to Shopify via Admin GraphQL API | ||||
| Conflict-safe multi-location inventory reconciliation | ||||
| Offline customer and gift-card lookup | ||||
| Built, installed and supported for your specific store | ||||
| Instant self-service install from the App Store | ||||
| No internal engineering effort required from you | ||||
| Tailored to your tender types, printer and inventory rules |
No. Advanced Offline POS is build-to-order. ECOSIRE builds, installs and configures it for your specific store, tender types, printer and inventory rules. There is no instant App Store install — we deliver and set it up for you.
After purchase we schedule a short scoping call to confirm your tender types, receipt format, printer model and inventory rules. A typical build and installation completes within roughly 2 to 4 weeks depending on hardware and edge cases; we confirm exact timing with you before work starts.
The sale is completed locally — cart, payment capture flow and receipt printing all work offline. It is stored in a durable on-device queue and replayed to Shopify as an order through the Admin GraphQL API when connectivity returns. Replay is idempotent, so a reconnect or app restart never creates duplicate orders.
On resync, stock movements are applied against Shopify's multi-location inventory levels using a conflict-safe strategy. If an offline sale would oversell a variant or collides with another queued sale, the app flags it for review rather than silently overwriting — so you reconcile knowingly instead of discovering drift later.
Yes, as an arrangement we agree with you. The $249 fee covers the one-time build and installation. Because the app depends on the Shopify Admin GraphQL API and POS extension platform, we offer ongoing support and compatibility updates as a separate maintenance arrangement so the integration keeps working as Shopify evolves.
A build-to-order Shopify POS extension that lets you keep selling during internet outages — full offline cart, receipt printing, queued orders and conflict-safe resync when connectivity returns.