Lif & Boya · 73% fewer returns.

Lif & Boya is an Izmir-based construction chemicals and DIY paint brand. Before Karum the biggest problem was returns: customers were ordering paint for the wrong square footage, applying it on the wrong surface, or picking the wrong shade. The return rate hit 19% — and every return was a permanent capacity loss, since opened paint cans can't be resold.

After moving to Karum, product templates gained a "surface + square-meter calculator" and a "color compatibility guide" — added from the panel, no code. E-invoice automation runs through the GIB integration; shipping label + waybill + e-invoice all flow with one click. Adding Trendyol and Hepsiburada took 2 minutes each, with category mapping suggested automatically by Karum's AI.

A year later the return rate fell to 5.1% — a 73% drop. The customer satisfaction score rose from 3.8 to 4.7. "Lower returns actually means we're selling the right product to the right customer; we're earning reputation, not just revenue," says co-founder Murat Çelikkol.