Has anyone been able to get the Chase (UK) Desktop Only connection to work in Quickbooks online ?

Hello there, Chelsea. Let me share steps and information in connecting your account in Chase (UK) Desktop Only with QuickBooks Online (QBO).

It's possible to connect your Chase (UK) Desktop Only in QBO. To do that, let's first enable connections to banks with different currencies and set up multicurrency in the Company Settings. 

Here's how to do it:

1. Click the Gear icon, and select Account and settings.
2. Select Advanced, choose Currency, and click the Pencil icon to edit.
3. From the Multicurrency, turn on the button and check the box beside I understand I can't undo Multicurrency, then select Save.
4. Click Done to confirm.

After that, we can now start the process of linking your Chase bank account. To do that, let's follow the steps below:

1. Login to QuickBooks on a computer
2. Click Transactions, then select the Bank transactions tab.
3. Choose the Link account to add a new one.
4. Click Search for a different bank.
5. Search your Chase (UK) - Desktop Only and click it.
6. Read through the terms and conditions, then select Agree. 
7. Tap Let's go, then Agree and continue the process to confirm.

Note: Select an account type that matches your chart of accounts. If you don’t see the correct account type, select + Add new.

Also, I've included this helpful article from another QBO region with the same steps that contain additional information to learn more about this process: Connecting Chase Bank to QuickBooks Online.

For future reference, you can check this article to learn how to categorize your bank transactions: Categorize online bank transactions in QuickBooks Online.

Should you have more questions about Bank connectivity or any other QuickBooks-related concerns, you can always reply to this thread. I'll be here to help you. Keep safe.