Originally Posted by offvoice

you can use the EMD number on the voucher, that’s the code you are supposed to enter, to be entered at the payment stage of your booking, either online on AF or KL website, or over the phone (not available through OTA obviously)

you can buy any flight coded AF or KL on their website, including flights operated by Kenya airways (though in this case that would most likely include flights to/from European destinations and a handful of African destinations. Flight between Nairobi and Mumbai for instance, would not be available as they don’t have AF or KL codeshares)

you have to book within a year, to effectively travel between now and 2 years from now. So usually date of booking +365 days is the limit, and date of booking can be up to 1 year after your voucher was issued