Within Teamwork Projects, you can choose to export an invoice in a project to your Xero online account.
To do this, click on your profile icon to the top right and select settings:
Now choose the integrations tab:
To the bottom of the page you will see an option to enable the Xero integration:
Once you have enabled this on site level, you must then enable it on the project you wish to use it on.
To do this, go to the project of your choosing and select 'Settings' and then 'Integrations':
You can now enable the Xero integration:
Once you enable this, you must sign into your Xero account:
You will be prompted to allow Teamwork Projects access to your Xero account for thirty minutes.
You will now see that you will have your Xero organisation linked and the base currency which is set within Xero:
You can now export invoices to Xero by clicking on the Billing section of the project and choosing an invoice to the left of the screen. Once this is selected, choose the export option to the bottom of the invoice:
This will give you an option to export to Xero online:
When you choose Xero online you will then be asked to choose a client from Xero and whether to add to an existing invoice or create a new one. You can also add or remove description/notes which are taken from Xero directly:
You can now choose export and you will receive a message to indicate that the invoice was successfully exported to Xero.
For more information see: Exporting an invoice to a Xero file