I am assisting a small company using QuickBooks 2021 desktop.  We were successfully using Microsoft 2013 to send out billing notices in Outlook 2013 through QuickBooks.  On October 28 the emails stopped working.  It was determined this was caused by a change Microsoft made because of security concerns, they disabled simple login in Outlook 2013.  I found a workaround that allowed access, but that will stop working at the end of December.

In the meantime, they ordered Microsoft Office 2021, with the intent to upgrade.  While attempting to install Office 2021 I received an error about a 32 bit version of Microsoft Office Access 2007 being installed, and it disallowed installing the 64 bit version of Office 2021.  It also disallowed installing the 32 bit version of Office 2021, complaining that there was a 64 bit version of Office 2013 installed.  Before uninstallling the Access 2007 program I wondered if QuickBooks may be using that.  A search turned up the web page here, which has the troubling news that QuickBooks 2021 only supports Office 2019 at the latest.  A check of Quickbooks 2022 indicates the same result.

So...  what options do we have?  Office 2021 has already been purchased and a key delivered, it is not likely we will be able to downgrade to Office 2019.  Will Office 2021 "work" with QuickBooks 2021 even though not officially supported?  

Time is short, the fix from Microsoft to allow Outlook 2013 to continue is set to expire in December.  Thanks in advance for any suggestions.