How can I use "DataStoreService" To save my dollars inside the player?

Right now my dollars dont save when you come back can I please have some help with data stares please.

I want to know how to use it what the key does and how to save many things

What is SetAsync and Get Assync and what do they do?

---T40

SetAsync simply saves your data and overwrites any previous data GetAsync get's the data and returns it

You should check this thread out: https://developer.roblox.com/articles/Data-store

It'll give you all the information you need to know about DataStore and how to use it. Goodluck :)