I'm not quite sure how to phrase this properly so please bear with me.
I'm trying to find out how to add different "levels" to a Shopify store... As in if Client from group A logged in the would see the pricing at $10 for a product, if client from group B logged in they would see pricing at $20.
Is this possible, if so how and what is this technique called?
Sometimes referred to as gated content.
This is generally a setup for membership, or wholesale.
Theme customizations for it use customer tags, there are apps like Locksmith can do to this.