For the App Check/Solutions Directory, is the API call limit a hard restriction?
On the App Check for the Solutions Directory it asks, "Please ensure that your application is live and your API usage is approaching the default call limit" Is there a minimum and maximum usage requirement for the APIs? Thank you for your help.
There's no minimum usage requirement. Although it seems that quote you pasted suggests that you should be approaching the 5K calls/day default/introductory limit to be considered for an App Check, so they know you are serious. Max usage requirements are definitely a thing. That's why you're applying for an App Check.