Hi @E_Gustavo,
Currently, we have an on-going issue where users like you received the Error 355 when updating your Citibank Account.
Rest assured that this has been escalated to our engineering and banking team and they're in all hands working to permanently fix this as soon as possible.
In the meantime, you can manually download and upload your bank transactions to QuickBooks. You can follow the steps outlined in this article so you'll be guided on how to do the tasks: Manually Upload Transactions into QuickBooks Online.
If you haven't yet, I'd recommend contacting our Customer Care Support. This way, you'll be added to the list of affected users. Once added, you'll receive all available updates about this issue through your email.
To do so, you can follow the steps below so you can reach our dedicated team:
- Go to Help.
- Select Contact us.
- Enter Citibank Error 355 in the What can we help you with? field.
- Click Let's talk.
- Choose Start messaging or Get a callback.
In case you need some tips and related article for future use, you can visit our QuickBooks Online Help Articles page for reference.
We thank you for your patience as we're working for a fix.
