Clarification on Derby user limit
2 answers
So this is a mixture of a + b. You can create more than 10 users but only 10 of them can be assigned a valid license.
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When creating a new Jazz account I did not see a field to assign a Derby license. Now I have 18 defined Jazz users (including system accounts) and did not get an error. Perhaps not every new account will automatically get a Derby account?
Sorry - not meaning derby licenses. I mean Team Concert licenses. So if you go to the license key management from the server there is a column called "Available". And there you have a limit with 10. If you add a license via the "Add..." Button on the same page the server will check the amount of licenses. And with derby only 10 will be allowed. Hope that claryfies.
Regarding your 18 Jazz users - as said, you can create as many useres as you want BUT you only have 10 licenses. Only 10 of your 18 useres can get a license in the derby scenario! The other 8 will not get a license.