Hello there, accounts89.

QuickBooks Online has a list of supported third-party applications. Since WIX Storefront is not yet integrated, what you'll have to do is download those transactions. This helps you upload those payments in QuickBooks.

Before downloading, you'll have to check if the file format is supported by QuickBooks (QBO). Here's the list of the file format that QBO support:

• Comma-Separated Values (CSV)
• QuickBooks Online (QBO)
• Quicken (QFX)
• Microsoft Money (OFX)

You can check these articles when you download the transactions:

• Manually upload transactions.
• Import bank transactions using an Excel file.

Additionally, since WIX isn't integrated with QuickBooks, this is the reason why the payments will crash every time you tried syncing them.

If you have other question with Payments, I'm here to help you.