Multiple subscription products on cart
<?php
if ( function_exists( 'YITH_WC_Subscription' ) ) {
add_filter( 'woocommerce_add_to_cart_validation', 'custom_woocommerce_add_to_cart_validation', 1 );
function custom_woocommerce_add_to_cart_validation ( $validation ) {
remove_filter( 'woocommerce_add_to_cart_validation', array(
YITH_WC_Subscription(),
'cart_item_validate'
), 10 );
return $validation;
}
}