Punctuation Question

I teach American business English in Italy. I have shown the students your page. Please explain to me why you chose to use the contraction of it is instead of the possessive.

I will share your answer with my students.

Tom

Please note that "Enter the message as it's shown" means "Enter the message as that message is shown" and "that message" got replaced by it, to avoid repetition, resulting in "Enter that message as it is shown" which explains the choice of contracting "it is" into "it's" in the final form, rather than using the possessive.

I hope this helps. If you need further assistance please let us know. Thank you.