Can you help me my app won't connect with my bank error 400

To ensure we're aligned, could you please confirm the name of the bank account that's generating error 400? Any extra details you provide will help us get closer to resolving the issue and determining if there’s an ongoing investigation regarding this.

Typically, error 400 indicates that the server cannot process the request due to a perceived issue (corrupted). If you're trying to connect your bank, we can take a few steps to identify the problem. Start by logging in to your bank's website to see if you encounter the same error. If the error continues, it may be originating from your bank, and I recommend contacting them for further investigation.

Alternatively, you can connect your bank account using a web browser by accessing your account from there. Here’s what you need to do:

1. Login to your QuickBooks Online using this link: https://quickbooks.intuit.com/login/.
2. Type in your login credentials and make sure the information is similar to the one you’re using in the mobile version.
3. Go to Transactions, then select Bank transactions.
4. Select Link Account.
5. Enter the URL or name of your bank in the Search field, then select the bank.
6. Enter your Sign info in the Login and Password fields, then select Continue. 
7. Select the account that you want to connect and date to pull transactions from the dropdown ▼. Then, select Next.
8. Choose your account type on the Account type ▼ dropdown, then select Next.
9. Follow the onscreen instructions.

For further guidance on connecting your bank account, refer to this article: Connect bank and credit card accounts to QuickBooks Online.

Once your transactions are uploaded, you'll be ready to categorise them. For a detailed guide on how to do this, check out this article: Categorise online bank transactions in QuickBooks Online.

Got questions in mind when connecting your bank account, Ronan? Drop a comment below.