Is it possible to put wifi voucher on the receipt

[tineprogramming]

My restaurant has a custom wifi system which need customer to put the wifi voucher passcode before using the wifi. I need to be able to put the passcode on to the receipt. Is it possible ? Like receipr header and call the hotspot api to get the passcode ?

[Yasuaki]

Hello there,

I think you can add a comment on receipt header or footer.