Hi allcloud123,
Thanks for posting here! Let me assist you in linking your bank to QuickBooks Online.
The first thing we need to make sure is that the Yes Bank doesn't have any system maintenance. That's the most possible reason why you can't connect it. You'll want to check the bank's website and see if there's an alert about it.
Also, please check this article: What to do if you get a bank error or can't download transactions in QuickBooks Online. In Step 4: Fix specific bank errors section, you'll see different bank errors. If you encountered any of them, click it and it'll show you the fix.
For the detailed steps, here's how to connect bank and credit card accounts to QuickBooks Online.
If this behavior, you can manually upload transactions into QuickBooks Online. All we need is a file from Yes Bank that we can upload.
Once done, you can now categorise and match them with transactions you've already entered. This will avoid discrepancies in your books.
Post again here if you need anything else. Have a great day!
