Error 101. I tried all recommended ways to link my business ABSA account, to no avail. Anybody who can assist?

Try opening your QBO account on any private/incognito browser.

We appreciate your effort in performing some fixes to connect your ABSA bank, Robbie. I'm here to provide additional resolution to help you.
 
To start, Error 101 indicates an issue connecting to your bank, often because the bank account is inactive (no transactions in 12+ months), you're trying to add an account for which you haven't accepted new terms and conditions, or there's a temporary problem with the bank's server.
 
Since you have already completed the suggested troubleshooting steps to connect your bank, we recommend contacting your financial institution directly to check for any ongoing maintenance that may be causing the issue.
 

If it is confirmed that there are no ongoing updates on the bank's end and the issue persists, we recommend contacting our phone support team. They have the necessary tools to look up your account and can provide further resolution to help you connect our account in QBO.

To contact our phone support, please follow these steps:
 

1. Go to the Help icon.
2. Choose the Search tab.
3. Click the Contact Us button and enter your concern.
4. Select Continue.

In the meantime, you can manually upload your transactions to maintain accurate and up-to-date records. Once imported, it is important to categorise and match the transactions to prevent duplicates and ensure proper assignment.
 

If you have any additional questions about connecting your bank in QBO or other QuickBooks-related topics, leave a comment below.