Mortar is the most complete POS-Shopify integration for brick-and-mortar retailers. It connects Lightspeed R-Series, Lightspeed X-Series (Vend), and Heartland Retail to Shopify, keeping inventory, orders, products, and customer records in sync in real time across your physical stores and your online store. Mortar is built by Accumula, a company that has been building retail integrations since 2013. WHO IT'S FOR Mortar is a good fit for retailers who: - Run one or more physical store locations alongside a Shopify storefront - Use Lightspeed R-Series, Lightspeed X-Series (formerly Vend), or Heartland Retail as their POS - Have struggled with inventory getting out of sync between their POS and Shopify - Want to offer buy online, pick up in store (BOPIS) to their customers - Are scaling — adding new store locations, expanding their online catalog, or both It's not the right fit for retailers who only sell online, or for POS systems outside the three listed above. WHAT MORTAR SYNCS - Inventory: Every sale, return, and inventory adjustment in your POS updates Shopify in real time, and vice versa. Supports multiple store locations. - Orders: Online orders placed on Shopify are sent to your POS. In-store sales update Shopify inventory automatically. - Products: Add or update products in your POS and they sync to Shopify. Manage your catalog in one place. - Customers: Customer records stay consistent between your POS and Shopify, including purchase history. - Refunds, exchanges, and order edits: When a customer returns something at your register, Shopify updates. When an order is edited after the fact, it flows through. Most integrations don't support this. HOW MORTAR COMPARES vs. the native Lightspeed-Shopify integration: The native integration syncs inventory and basic product data, but it doesn't support refunds processed in Lightspeed updating Shopify, exchanges, or order edits. It also requires manual product matching in many cases. Mortar handles all of these natively and uses automatic product linking — no manual SKU mapping required. vs. SKU IQ: SKU IQ is a competing integration that also connects Lightspeed and Shopify. The key difference is product linking: SKU IQ requires you to manually map products between systems. With Mortar, that process is automatic. Mortar also handles refunds, exchanges, and order edits; SKU IQ does not. HOW IT WORKS Setup typically takes less than an hour. You connect your POS and Shopify accounts, Mortar automatically links your products between the two systems, and sync begins. The initial product link runs automatically — you don't need to manually match SKUs. Most merchants are live within a few hours. CUSTOMER RESULTS - A DTC clothing brand scaled from 4 to 54 store locations while keeping their POS and Shopify in sync throughout. - An outdoor sports retailer onboarded a catalog of over 100,000 SKUs in 3 days using Mortar's automated product linking. - Multiple merchants report eliminating the manual inventory reconciliation work and customer service problems that previously wasted several hours per week. FREQUENTLY ASKED QUESTIONS Does Mortar support multiple store locations? Yes. Mortar supports multi-location inventory out of the box. You can manage inventory across all your physical locations and your Shopify store from within your POS. What happens when a customer makes a return in-store? When a return is processed in your POS, Mortar updates Shopify — the order status, inventory, and any associated records all stay accurate. This is one of the most common gaps in competing integrations. Do I need to manually match my products between my POS and Shopify? No. Mortar links products automatically based on SKU and product data. You don't need to manually map products between systems. Does Mortar support buy online, pick up in store (BOPIS)? Yes. Mortar supports BOPIS workflows with Lightspeed and Shopify. Is there a free trial? Yes. Mortar offers a 14-day free trial. See usemortar.com/pricing for plan details. Which POS systems does Mortar support? Lightspeed R-Series, Lightspeed X-Series (formerly Vend), and Heartland Retail.