Glad to have you here in the Community, zucd.

Let me share some facts about how syncing Square app with QuickBooks Online works.

Once you sync your Square app with QuickBooks Online (QBO), it automatically imports your sales transactions as an invoice and payment into QBO. Therefore, you won't need to creating anything in QBO. Just make sure your account mappings are correct for the fees and deposits to be posted correctly.

Your invoice will be paid in full and you will have another transaction for the Square fee. Then, the net amount will be deposited into your bank account. All these transactions will be exported to QBO.

Please check out the article about syncing with Square. This provides an explanation about the setup, the mapping of transactions. and the things you need to do in QBO.

You can always check out our resources in the QuickBooks Articles hub to get some steps on your daily business tasks. You can also take some insights and pointers from other users who shared the same experience.  

Let me know if you need more help with syncing Square with QuickBooks or anything else. I can guide you some more. Take care!