Maximum Number of Licensed Users Message

When attempting to gain access to Access Gen (TSO) some developers get the following message and as a result cannot use the software:

Command ===> Maximum number of licensed users has been reached

This message appears when the number of users attempting to use Access Gen (TSO) exceeds the licensed number that has been purchased. Access Gen (TSO) is licensed on a per user basis. This is not a concurrent license, but the total number using the product. This is monitored by the tool which maintains a list of valid users. If a user ceases to use the product, their 'slot' becomes available for another user after a set period.