Once again me... after a long break...
First of all you & your team to made group-office as wonder full web-application to meet all the basic requirement need in the web (calendar, task, bills, emails etc..). Gr8 Job.
I'm using community edition of group-office (version 2.16 stable)... i made few changes (in authentication and admin process) in that code. Now, we have the requirement for synchronization of Calendar, Tasks with outlook. I search for the solution in the web for the same... all said it will done by only sync module is available. But, it will available only on professional version.
My question here is... are you provide the sync module & its related files for the version 2.16 to us for charge(payment). Kindly mention the charge (Payment amount) for the same. Because, we do the lot of code change in GO to adapt with our application. If we get the newer version, it make us to rework on the code. So, we plan to add the sync module in the existing setup.