How do I find my product activation key?

[Cipher001]

I purchased RPG Maker MV through steam and can't seem to figure out how to find it again. I need it for support tickets-- I'm having issues with buying from the store-- but I have to know the code to submit a ticket. What do I do?

 

[Andar]

Steam does not give a key as it works with a different DRM - but you don't need the key for the ticket, just either fill the line with zeroes or write "steam" in the ticket.