I'll share information that could help you fix this specific bank error you are having.

Bank error 163 indicates that there has been a website change, and the financial institution's data needs an update to support the new website. In addition, credential keys may have changed and need to be updated.

It usually occurs when:

• A financial institution switches its Internet service provider.

• If you are using an incorrect login link or site.

• The bank website is down for scheduled maintenance or intermittently unavailable.

If the same error persists after some time, I recommend contacting our QuickBooks Online Support Team. It allows them to look further into your account and confirm the problem.

To speak with one of our experts from QuickBooks Online Support. Please follow the steps below to contact support:

1. Sign in to your QuickBooks Online company. Click Help (?).

2. Select either tab: Assistant or Talk to a Human.

3. Search or select Contact Us.

4. Start a chat with a support expert.

You can contact us from Mondays to Fridays, 8 AM to 6 PM SAST.

You also can visit this article for future reference in case you encounter other banking errors: Troubleshoot and fix banking errors.

For additional QuickBooks-related concerns, don't hesitate to post them here in the Community. We're always available and willing to lend a hand to your queries. Have a great day ahead.