Login to your Markate account.

• Go to Settings by clicking the gear icon on top right.
• On Online Payments settings page, scroll to the payment method- authorize.net. 
• Click 'Setup' to configure this payment method.

• It navigates to the next page where you have to click 'Connect to Authorize.Net' button.

• Next, it will redirect you to the authorize.net website login page.
• Enter your authorize.net account credentials i.e. Username and Password. 
• NOTE: Make sure you already have an account created on this website
• Click 'Log in' button

• You will need to verify your identity. For that you must be receiving a PIN on your registered email address.

• Type that PIN in 'Enter PIN' field. Make sure that you enter correct PIN.
• Click 'Verify PIN'

• Next, you need to allow Markate to perform particular actions. Example: Create Payment transactions, View reporting data, Create and update customer profiles, Create and update subscriptions. 
• For that, click 'Allow' button.

• After that, go to Authorize.net > Home > Settings > API Credentials & Keys. You need to copy API Login ID and Transaction Key.

• Come back to Markate > Authorize.Net Settings.
• Paste API Login ID and Transaction Key and click Save.

• Once this setup is done successfully, you can see the Authorize.Net payment Status as 'Configured and Connected'.
• Mark the 'Make Active' checkbox to enable it.

You are all set! The invoice will have pay now button and ready to receive Payments!