Note: This is an add-on. You must have at least WooComerce PDF Vouchers v3.9.1 to use it.
WooCommerce PDF vouchers: OTP Verification addon allows you to send OTP (Once Time Passcode) either on email or mobile on voucher code redemption.
= version 1.0.2 (2020-07-03) = * [+] Added OTP security while using a voucher code as a WooCommerce coupon on cart. = version 1.0.1 (2020-04-16) = * [+] Added a compatibility with WordPress 5.4. * [*] Fixed add to cart not working while plugin is activated. = version 1.0 (2019-08-05) = * [+] Initial Release