I have been using Quickbooks desktop for years!  Now when I try to change companies, my Quickbooks shuts down.  I restart and try to switch companies and it shuts down again.  I called support and they told me the problem is, I am using Quickbooks 2021.  They told me to close my company and then all my companies would show up so I could change companies.  Now that isn't working!  Quickbooks shuts down.  They want me to update to 2022 or 2023, but I can't.  They took away the scan manager ap and want me to download my bill of ladings on my phone!  That is a joke!  I do many invoices everyday and that is not an option for me!!!  I am at a loss and don't know what to do!!!