Offers and checkout rules a 28-store operation manages from Shopify.

For 1ashop.hu, the team wanted quantity offers with a separate colour and size for each item. Shoppers should see the savings while they choose. I built the theme and a quantity-offer app together. Staff set tiers in the app. The theme and a Shopify Function, a rule Shopify runs at checkout, read the same settings.

The product page shows the savings checkout applies, and each item keeps its own variant.

Each connected store has its own Shopify admin. Both custom apps have a store switcher, so staff move between connected stores inside the app.

The team makes routine changes in the embedded dashboards. I handle new module behaviour and Shopify updates.

Hundreds of advertising codes were deliberately set not to combine. That also blocked the checkout promotion the team wanted. Adding exceptions to each code would have been fragile. I moved the codes into one discount module, where a Shopify Function applies one code at a time.

A campaign code and the gift-card promotion apply together across the active stores.

Paid apps handled cash-on-delivery fees and option checks, each installed, configured and paid for store by store. Each paid app meant another subscription on every store. I replaced them with modules in Megasplet's own app, which serves the connected stores from one place.

Cash-on-delivery fees, option checks with Variant Guard and gift-card reporting run from that app. The Italian stores have delivery rates for specified destinations, including islands.