Something unexpected happened and we can’t connect to Danske Bank Business Banking (UK).

Hi joe-numilo-com, thanks for joining the Community.

We'd be happy to help you with this. Checking our system, we don't currently have any reported issues with Danske Banking in QuickBooks, meaning you should be able to connect and update your accounts.

To troubleshoot the error that you're receiving, please sign into QuickBooks via a different web browser and/or incognito window. If the error persists there, please try disconnecting and reconnecting the account in QB. Here's how:

(Note: Before you disconnect your bank account, it's important to go through the 'For review' tab and make sure that all of the transactions are ones that you actually want to include. If you don't review your transactions before disconnecting your bank account, you run the risk of losing data that you need.)

1. Before you disconnect your bank account, make a note of the last transaction date. This will help you avoid downloading duplicate transactions when QuickBooks asks you to pick a date to start downloading transactions when you reconnect the account.

2. Go to Bookkeeping, select Transactions, then select Bank transactions 
3. Select the bank account you need to disconnect.
4. Select the pencil icon✎, then select Edit account info.
5. Tick Disconnect this account on save.
6. Select Save and Close.

To reconnect your account, go to Bookkeeping > Transactions > Bank transactions, then select Link account or Connect account.