Some questions about the shop...?

Hey,

So I'm trying to set up a shop, basically I have an in game currency (Gems) and I want to set it so someone can visit the shop and purchase Gems. I go to the shop screen I have added purchase button but theres nothing for me to set the button to reward the gems after its completed. I tested it but when I click the image it makes the sound I applied but it has no value if you know what I mean?

Luke.

 

If I get you right, did you add your Gem image as an Action or Object?

 

Action, I have figured it out now haha thank you though!