As far as I know there isn't a limit as to the amount of end users that can bee added onto a subscription contract, just one Contract Manager per contract and one Software Coordinator per serial number.
Please let me know if you have additional questions or accept as a solution if this fully answers your inquiry.
Exactly what I meant. Thank you for the reply.
I was just looking and the number of potential invitees for my main contract number and it is more than the number of employees we have for the company.