Click the link below

https://www.caaxapp.co.uk/caax/sxclient/web_registration_page1.aspx

Accept the Terms and Conditions

Click the Sign up using Xero button

Next select the Xero Organisation to connect

Next select the Xero Organisation you want to connect

After selecting the Xero organisation click the Allow access button this will take you to the screen below.

Now please enter a secure password

The screen below will be displayed which confirms the registration and integration is complete.
Caax will now authorise this account within 1 business day.