Guys who can tell you how to find information on the topic creation Drag'n'drop variable funnels, or rather of the whole process?
Maybe someone faced with the implementation of visual programming processes, which are constantly monitored some events? For example, the client opened the letter 1, we are notified that the letter has been read, we wait for 2-3 minutes (the period we decide) and pull the event, which is sent with letter 2, if not read the Letter 1, we his helmet letter 3. If the person in the letter 2 passed by reference and made an order, the system sets the task Manager that it is necessary to call the client.
Understand that it is difficult describe the issue, make an outline of what you want to achieve , the scheme is here
If someone implemented a task like this, please distribute the links, what to study/read, as is better to structure your database, how best to circumvent the process in order to capture events as possible to implement Drag'n'drop functionality for visual programming blocks?
Interested in any information on the implementation of this task, thank you in advance!