What are the coins for and how do I use them? It has a grey icon and I can't activate them.

Sarah_Tejada

I have over 1200 coins and can't use them. How do I activate them and what can they be used for?

KingsPinn

There is a Blog post here all about the new game. It should help you out  

https://care.king.com/en/blog/article/farm-heroes-super-saga-beginners-guide