Yes. Lets say a user inputs this message: I have mail
What would then happen is that the entered text would be altered by the polyalphabetic cypher, which is GOOGLE. G O L E each have its own table for conversions. Therefore it would be encrypted as this:

I g
H o
A o
V g
E l
M e
A g
I o
L o

As you can see this is a very weak encryption because it repeats words for conversion. However a more effective approach to encryption would be like the following:
Each character that is possible for user entry has its own table. First a user enters the text intended to be encrypted, and then a key. The ability to create ones own key can create a much more difficult encryption to crack. For instance: I have mail is encrypted by my own key which is #%Fs94!_SC~.