I am having trouble connecting and linking new bank accounts (BMO)

Hi freda4,

Thanks for reaching out here.  Welcome!  It's important that you're able to connect your BMO account with QuickBooks Online, so your books remain accurate and up-to-date.  I'd be glad to assist!

BMO has recently switched to OAuth to improve banking for QuickBooks Online customers, for which you'll need to update your connection. Here's a detailed guide, for your reference about the new OAuth changes; https://bit.ly/3Xfo02D.  

Follow these steps to disconnect the account;

1. From the left menu, open Banking 

2. Select the blue tile for the BMO account, click on the pencil ✎ icon, then Edit account info

3. Select Disconnect this account on save 

4. Hit Save and Close.

Here's how to reconnect the account; https://bit.ly/3JhVdFH.  If you get an error message when trying to re-authenticate, follow this link.  In addition, there have been some changes with the list of BMO Canada connections, that you will find here.   

If you require additional assistance, please contact us.  Your time is valuable and we'd love the opportunity to work with you in real time, so you can get back to business as soon as possible!

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Please don't hesitate to reach back out with other questions.  We're here for you!