Lazzoni: Custom ERP Sync Software for Shopify Plus

We built a custom Shopify app for Lazzoni. A transfer layer with read-only access to the ERP sends price and product data to the app securely every day; nothing in the ERP changes. The app translates this data into Shopify's product, variant and option structure, writing the SKU, barcode and dollar price to every variant.

The hardest part of the project was pricing. Lazzoni's sofas are made of several modules, seat and base fabrics and a console finish, and the ERP keeps a price for each part rather than for each variant. The combined pricing engine we built breaks the variant code in Shopify into its parts, finds the ERP price of each part and adds them up. If a part has no price, the variant does not fall back to a wrong price; it is reported as missing. For the first 22 products mapped by the Lazzoni team, all 772 variants were priced without a gap and written to the live store; the remaining products join the same engine as they are mapped.

Before going live, we validated the system end to end in a separate test store: more than 1,400 products and about 10,000 variants were created with zero errors, re-running the same data produced no duplicates, and products removed from the ERP were moved to draft instead of being deleted. We handed the software over to the Lazzoni team together with its source code. The work now continues on the theme: together we prepared the new structure that brings five markets down to two, US and Global, in four languages, along with the redirect plan.