How to reconnect your QuickBooks Online, Log into your ConnectBooks account, on the left menu column, click on Stores & files. Click on the desired file and select "Reconnect". Related ArticlesHow to connect your QuickBooks Online file to ConnectBooksHow to connect your QuickBooks Desktop file to ConnectBooksHow to Reconnect to QuickBooks Online as AdminHow to Export Bills & Adjustments to QuickBooksHow to Switch from QuickBooks Desktop to QuickBooks Online