Calendar Activities (Tasks & Events) is considered a special module due to it’s custom design. That makes it harder to integrate with all the other extensions, add related modules and most importantly – customize. Events/Tasks in VTiger are used differently by many business, some use for scheduling jobs, reminders and others for actual to-dos, tasks and checklists. One the key features VTiger Calendar module is missing – is ability to attach documents/files to it. One of our customers requested to add such ability and we designed in a way where you can attach multiple documents/files to the activity as well as include those into the emails generated by workflow.
That’s just one of the VTiger customizations we’ve done – please give us a call if you need such solution or anything else related to VTiger.