Reply To: how to select 2 free products on products with 2 quantity

[Soft79]

You need to add a snippet to your CHILD THEME’s functions.php for that:

add_filter( 'wjecf_free_product_amount_for_coupon', function ( $amount, $coupon ) {
    if ( 0 === strcasecmp( $coupon->get_code(), 'THE_COUPON_CODE' ) ) $amount = 2;
    return $amount;
}, 10, 2 );

Replace THE_COUPON_CODE by the actual coupon code. This snippet fixes the allowed amount of free products for the coupon to two. You need to set Min quantity of matching items of the coupon to 2 as well.