Zettle
Your Zettle or PayPal POS login.
Connection: OAuth login
Setup guides
Each guide shows what you need before starting, the exact Train My Camera clicks, provider credential steps, what fields sync, and how read-only access works.
The Free plan lets you test with up to 20 active items. If your selected POS scope is larger, reduce the selection or choose a paid plan before syncing.
Your Zettle or PayPal POS login.
Connection: OAuth login
An x-api-key from a Front Systems Backoffice integration user.
Connection: Backoffice x-api-key
Your Shopify admin login and myshopify.com domain.
Connection: OAuth login
API credentials from Sitoo Backoffice -> Settings -> Sitoo REST API.
Connection: REST API credentials
Your Square seller login.
Connection: OAuth login