You can void vouchers to revoke the remaining value from customer use. This is particularly useful if you’ve refunded the order where the voucher was purchased, since refunding an order doesn’t automatically update purchased vouchers. A void will always nullify the entire remaining amount and will change the status from “Active” to “Voided”.
Follow the steps below to void a voucher:
Go to WooCommerce > Vouchersand either:

Article ID: 1697
Created On: Wed, May 12, 2021 at 4:00 PM
Last Updated On: Wed, May 12, 2021 at 4:00 PM
Online URL: https://www.heartinternet.uk/support/article/void-a-voucher.html