All Settings Overview

Setting	Description
SumUp OAuth	Connect your SumUp account via OAuth 2.0. Click Connect SumUp via OAuth — no API key or merchant code needed. Token refreshes automatically.
Webhook Secret	Security key for incoming SumUp notifications. Create with the Generate button — no manual value needed.

Setting	Default	Description
Quick Mode	Off	Automatically send payment after countdown — without manual confirmation.
Quick Mode delay	3 sec	Countdown duration: 0, 1, 2, 3, 5 or 10 seconds.

Setting	Default	Description
Auto-link	Yes	Transactions are automatically matched to the corresponding Shopify order.
Sensitivity	Medium	How closely amount and timing must match. Higher = fewer automatic matches, but more precise.
Time window	10 min	Maximum gap between payment and order for an automatic match.
POS orders only	Yes	Only Shopify POS orders are automatically matched (recommended).
Exclude cash payments	Yes	Pure cash payments are skipped during automatic matching.

Setting	Description
App language	German (DE) or English (EN). Affects the Shopify Admin app and the POS extension.