Syncing with Square has a few limitations, @analisamartin.
This includes that QuickBooks doesn't import your customers’ information from the Square, such as names or email addresses.
As a workaround, export the customer’s name as CSV file then import to QuickBooks Online (QBO).
Here’s how:
- Select the Gear icon.
- Choose Import Data.
- Click Customers.
- Browse and select a file to upload.
For additional information about limitations, you can check these articles:
I added a link for your future reference in case you need more information about QuickBooks: Help articles.
You can count on me if you have any other concerns.