If the connection with Xero is not yet set-up, this is how to establish the connectivity between Xero and WIndcave.
Open Windcave https://www.windcave.com/ and login
Click User Accounts
Click My user
Scroll down and click Connect to Xerro
Click connect to Xero
Click Select an organisation
Select your subsidiary name
Click Allow access
Click 'branding theme' (just above the red buttons)
Select 'Word Invoice template in PROD'
Click 'payment account'
Select 'undeposited funds - Xero'
Click update (red button)