Is there a limit in quantity of FileMaker Pro Standard/Advanced users where connection to a FileMaker Server with Team License is involved? I mean that if a company choose the FileMaker Server with 5 license for User Connection, I may be the sixth to be connected with my standard FileMaker Pro Advanced with no problem (I work this way at my customer sites) but which is the limit for quantity of user connected, if any, at server side?
The limit of 5 pertains to the ones connecting using the team license. For regular Pro/Advanced licenses there is no limit, other than the physical limits imposed by the server software/hardware combination. Check the FileMaker Server specification at filemaker.com for those limits.