We sell our software in an unlimited user configuration that allows you to create a user record for each person who works with our software.  We want you to create a user record for each user because this helps you keep track of who entered or modified every piece of information in the system.  We understand that some users in each office will use the system more than others.  For example, a volunteer may only touch the system once a week while the Assistant Development Director might use the software all day long, every day of the week.  We charge our customers for support for only those regular users (Primary Users) and not the volunteers.  If your organization grows, there may come a time when we increase the number of Primary Users and therefore increase your annual maintenance agreement cost.  Note: we will never increase our contractually stated per user support fee, but possibly, if you hire more Primary Users, we may charge you for having more Primary Users of the software.