Is it possible to delete voided payments in batch? The reason is that we put a wrong memo description and voided around 150 of the payments, how can we delete all of it?

Hi there, @accounts-chern-c.

The option to delete voided payments by batch is unavailable in QuickBooks Online (QBO). You have manually open each transaction in order to remove them from your records. 

Here's how:

1. Go to Sales and select All Sales.
2. Look for transactions that have voided status.
3. Double-click each of them to open.
4. Click More and choose Delete.
5. Select Yes to confirm.

For more details, check out this article: How to Void or Delete Invoices, Expenses, and Other Transactions in QuickBooks.

I can see how this option would be helpful for you and your business. Therefore, let me take note of this as a suggestion to improve your QuickBooks experience.

In case you need to recover some details of deleted transactions, use the audit log feature in QuickBooks. 

If you have any other concerns, feedback, or questions, don't hesitate and come back to the Community. I'm always here to help you. Have a great day.