There are 2 methods to void combined payment note.
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​Method 1: Void the combined payment note that have not yet been paid
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To generate the combined payment note retrieved expense records and want to void that document. It can only be voided when the combined payment note not be paid yet.

These steps are following below:

Go to the combined payment note > press the dropdown list on Option button > Void

Method 2: Void the combined payment note that is already paid.

For the combined payment note that is already generated and paid, you can void that document by following these steps below.

Step 1: Go to Revenue menu > Billing Note > Open the document you want to void > Select tab 'Payment' > Click Void.

Step 2: When the payment is voided, please go back to tab 'Document' and press the dropdown list on Option button. Then click Void.