If you are trying to sync an invoice from EZRentOut to QuickBooks Online, you might come across the following error:
This error occurs because midway the sync, your connection is lost. As a result of this, the invoice is created in QuickBooks but is not linked to EZRentOut yet. Another indicator of this error is the fact that the “QuickBooks Online Synced At” field on the Orders Detail page has no timestamp.
To solve this error, simply delete the invoice from QuickBooks and then sync again with a more stable connection.
