Woocommerce PDF Vouchers Developer Docs

This filter can be used to modify valid voucher code message on check voucher code page.

The filter accepts three parameters:

• $message - a HTML string containing the invalid voucher code message
• $product_name - a HTML string containing the product name from which code was generated
• $voucodeid - the numerical ID of the voucher code

An example of how you can add custom used voucher code message is as below: