Hi, I'm trying to reauthenicate my PayPal UK account to get the updated transactions. But it fails after I login with an error "failure to confirm it's you".

Thank you for bringing this to our attention, @digimerchant-uk. Your concerns are being taken seriously. 

We've received similar cases about this issue. I recommend contacting our support team so that you will then be added to the list of affected users and receive updates via email.

To contact our support team, here's how:

1. Log in to your QuickBooks Online account.
2. Click on Help (?) at the upper right corner of your screen.
3. In QB Assistant, enter the topic you need help with. You can also enter questions.
4. In Search, select Contact Us to connect with a live support agent.
5. Choose how would you like to contact our QuickBooks support team.

• Start a chat with a support expert. Live chat all day, M-F.
• Call us. M-F, 8:00 AM to 10:00 PM, and S-S, 8:00 AM to 6:00 PM.

In the meantime, to reduce the impact of the issue, I suggest that you manually upload your transactions to QuickBooks using CSV files as a temporary solution. 

While we work on resolving this issue, please stay tuned for updates or communications on the progress. Your patience and understanding are important to us as we strive to assist you in enhancing your experience with QuickBooks Online.

Once everything's good, feel free to utilize this additional reference in categorizing your transactions and putting them into the right accounts: Categorise online bank transactions in QuickBooks Online. 

If you have any questions or concerns regarding your QuickBooks Online, please do not hesitate to contact us at any time. We are always available to assist you.