How do I find out which customer's bank transfer was canceled due to a problem with their account?

Hi there, @kimi2.

You can check your bank statement to find out which bank transfer transactions have been canceled. Also, I recommend contacting your client to discuss on how you settle the funds.

These steps may also help you view your bank statement in your QuickBooks Online account.

1. Go to the Accounting tab.
2. Select Reconcile.
3. From the Account dropdown, select the bank account.
4. If you see the View statements option, you can get your bank statements directly from your bank for this account. Select View statements to see your available statements.

If this feature is not yet supported by your financial institution. You can directly request the bank statement to your bank.

For your future help, in case you'll need help downloading your bank transactions manually in your QuickBooks Online account, you can refer to this article: Manually upload transactions into QuickBooks Online

If you have additional questions, feel free to leave a message in the comment section. I'm always around here in the Community to help. Take care and have a great day!

The problem is that I don't know how to find out which client it is.  I got an alert on my dashboard that said:

Hi kimi2. I know exactly the article to help you find out what happened. We have a guide on how to handle a rejected or failed bank transfer here. It contains step-by-step instructions on finding these transactions and how to handle them going forward.

If you run into any other issues, or you can't find it you may need to speak with one of our support team by phone. You can get the up-to-date phone contact at the Intuit Support page. Have a great rest of your day. 

There is nothing that tells me what was rejected

This helped me, but I don't see any transactions that were voided - I did a search for not only recent, but through the whole year. 

I suggest to add the link to that payment that got rejected in the dashboard notification.

Hi there, @EliteEden.

I appreciate the suggestion you've shared and I would agree that this would really help users to identify whose payment got rejected.

QuickBooks is accepting these kinds of feedbacks and you can share it through the QuickBooks Online program. Once it has been submitted, our product developers are going to assess it and may be included in our future enhancements. I'd be happy to show you how to send it directly to them.

1. Login to your QuickBooks Online account and select the Gear icon.
2. Under the Profile column, select  Feedback.
3. Input your feedback in the box and select Next. This is how it looks like:

I've added an article for your future reference about matching your bank transactions in QuickBooks Online: Categorize and match online bank transactions in QuickBooks Online. This contains steps on how to find the exact transaction you've input in QuickBooks to match it to your bank's transaction.

I'll be around if you have other concerns. Feel free to comment about it below and I'll get back to you. Enjoy the rest of your day!

Agreed, @EliteEden! I submitted the following Feedback to QBO in your honor:

Please add a link to the related payment transaction so we can identify which customer was involved and contact them to rectify the situation. This can hardly be considered useful information without customer identification.