A Merchant ID is an identifier for your business so, we know which company should receive payments. You’ll find it in the confirmation email you received when you signed up and from the "Profile" tab on your Accept dashboard.

An Integration ID is an identifier that gives us details about payment including: 

- What payment method it is (card or wallet or kiosk, etc.),

- Is it live or test, 

- Is it for use in an integrated website or only for using the standalone payment tools from the Accept dashboard.

- You can have multiple Integration IDs so make sure you’re using the correct one for any payment.