Is there a limit to how much FBA Inventory I can have at any one time?

I’ve been a professional seller for seven years, but I just got back into FBA. I don’t have an IPI rating yet, but the items I send do not take up that much space, relatively speaking: about 100 is about 12”x 12” x 12”. If I’m approved (I am) is there a limit to how much I can send to them? Fees are not an issue.