Yes you're correct, dg311. 

Transaction from square is usually downloaded either Invoices or Payments. Then you can find match the transaction from QuickBooks.  

You can also compare the transaction from your bank and from QuickBooks to determine which one is you're looking for. 

You can check this article for more insights about the process: Add and match downloaded banking transactions 

As always. you can find me here if you have any other concerns or follow-up questions about this topic. Have a pleasant day ahead.