What are the options for updating an Activity Data Field before a client event?
Basically I have an ActivityDataField with an initial value and I want to prefix it with a ProcessDataField, I tried to do this in the preceding rule but had issues as the destinations are set up yet. The only other way I can see is to add a server event and do the server event before the client event. The server event will then set the ActivityDataField.
Any other ideas?