We had to temporarily stop importing your Square transactions. There’s a problem with your Sync with Square settings, causing transactions to import incorrectly. The setting(s) that need attention are:
Square sales tax code
Not to worry, here’s how to fix this:
Go to your QuickBooks Online and clickAppsin the left navigation.
Click theMy Appstab.
Find the Sync with Square app, and clickSettings.
Select the correct value from the drop-down for the setting(s) listed above. Note: if a setting has no value, you need to create the item in QuickBooks.
When I went to MyApps I'm not even currently using the app "Sync with Square" as it prompts me to download it.
With regards to the email you receive, I recommend reaching out to the support team of square app. They are the ones who decides what transactions to import inside QuickBooks. You can also verify from them if you'll need to follow or ignore the email.
You can also check this article to learn more about connecting square app to QuickBooks Online: