When you run the licensing program LICENS to install a new license, the normal and desired result is a final response from the program saying "License Valid!" Given that things don't always work as expected, however, a "License Invalid!" response is not beyond the realm of possibility. If and when this happens, knowing WHY the new license data was rejected can be helpful. The table below shows the meaning of the error codes that may be shown in brackets immediately following the negative message.