I have a client who would like to connect his iCal to a system we are building for him. He has three users - himself and two others. They share an internal calendar using iCal which they all edit with their own appointments etc.
He wants to know if we can connect to a system we're creating that will allow him to create an appointment in FileMaker under the client record and it adds it to the iCal shared calendar. I've had a check around and there seems to be lots of conflicting suggestions.
They will be using Macs with Yosemite and El Capitan and FM Pro 15