NOTE: When using any Xero integration features, you need to have at least "Standard + Payroll Admin" access (https://central.xero.com/s/article/User-role-access-to-payroll-in-Xero)
The Tempus support team will guide you to this article, after we have granted adequate permissions for you to access the advanced configuration of your account. As you can see - there’s a lot of potential configurations in Tempus, this is why we ordinarily reserve this level of access to the Tempus support team only. Please only make changes as instructed in this guide.
Go to 'Payroll Settings' > 'Business Management' > 'Integrations'.

Go to 'Xero' and click 'Add'.

Once you have selected 'Xero', Click the 'Connect to Xero' button:

You will then be transferred to the Xero login screen to choose an organisation and authorise the payroll system to have access to your Xero data.

Once this step is complete, you will be redirected back to payroll to configure extra settings, as follows:
Select the Xero business you'd like to connect to payroll
If you want the payroll data exported as an AP invoice or a payroll journal
If you want the payroll data posted in draft format
Then click on "Save".