Hi Andypiper 
We want to know what your recommendations and good practices are. I thank you in advance for your help.
We have a new solution called BeAmbassador that allows our customers (companies) to connect with their employees and that they can share the content cured by the brand in their social profiles voluntarily.
The use is to publish Tweet (not MD, not Retweets) and access to basic metrics such as number of followers, number of publications, shares, clicks, comments and impresions.
We are seeing that some of these companies want to invite hundreds of employees. We want to avoid that if you reach limits do not affect other customers
What do you recommend?, Create a new app on Twitter for any customer account we have or
Can we with a single app establish a different name space for each of our customers?
How many apps can we create as developers?
Again thank you for your help