I have a glitch with one particular refund payment which is the exact diff amt. The diff amt is not showing up on the GSTR3B . Is it okay to void the income invoice.?

Hey there, @aravindhan2491-g.

Since the glitch you've received is coming from a refund payment, it's not necessary to delete the invoice. These two are separate transactions therefore they aren't directly affecting each other.

However, I'd recommend deleting or voiding the refund payment instead. Voiding changes the amount of the transaction to zero but keeps its record in QuickBooks. On the other hand, deleting it will remove its entire entry in QuickBooks Online. 

Simply follow these steps to remove it.

1. Select the Magnifying Glass.
2. Enter the date, amount, or transaction number you’re looking for, then choose the desired transaction.
3. If the transaction you're looking for does not appear on the results list, select Advanced Search.
4. Click the refund payment to open its window.
5. In the lower section of the invoice, select More and choose Delete or Void.
6. Select Yes to confirm.

You can also check out this article for more info in searching your transactions: How to use the Advanced Search feature in QuickBooks.

Additionally, there are several financial reports you can run to track your sales income in QuickBooks. They will show you helpful insights on the things you buy and sell, and the status of your inventory. 

Let me know if you need further assistance with this. I'm always around to provide answers and clarifications to your questions. Have a great day ahead and take care.