USDT TRC-20 vs ERC-20 at checkout: pick the network once

USDT looks the same in a wallet list. The network does not. **TRC-20 (Tron)** — usually lower fees and faster confirmation for smaller carts. Put “TRC-20 only” on the payment screen. **ERC-20 (Ethereum)** — fine if that is what you advertise, but fees spike. Never mix the two on one invoice. Practical rules we run at Kushina: 1. One asset + one network per order screen 2. Exact amount with trailing digits so the payment is unique 3. Short invoice lifetime so rates do not drift 4. Buyer confirmation text: “Send USDT on TRC-20 — not ERC-20” Full BTC + USDT walkthrough: /blog/bitcoin-usdt-checkout Shop with crypto: /shop