You may check the Accounting Software (Xero, Quickbooks) and you may find that some Invoices or Credit Notes have not gone through. In this case, you can search and see where and why they got blocked by checking the Integration Status.
It is especially useful to track the Integration Status after the first activation of the connection between Archdesk and the Accounting Software. Sometimes during the activation, the Integration Status Report shows that not all of the transfers have been made.
To get to the Integration Status you need to:
Go to Settings and Preferences > scroll down on side menu to Integrations > click on the Settings of your Accounting Software (Xero or Quickbooks) > click on Integration Status.

Depending on the error message there may be a few reasons this happens:
- if the error message indicates that the document cannot be transferred due to incorrect tax, check the data on the invoice and correct it, then remove the record on the integration Status log and sync again.
- if the error message indicates that there has been an issue with the token, then it may mean that you tried to activate the integration twice.
If the error keeps occurring, please contact Archdesk support - support@archdesk.com