Hello A.

I don't think there are "drawbacks" in the sense you will have less flexibility than normal coding or will not be able to do something.

But programming BPT requires a shift in the way you think the app, as you will program in an asynchronous way.

Also, it is better to not mix BPT and normal logic, as this will lead to a less clear code with more points of potential problems. When using BPT, doins a, complete Process Aware application (entire around BPT) has many advantages.

The only thing I see one could see as a Drawback, is that when you change the process, you have to be very careful because of the impact on processes already running in production.

Cheers,

Eduardo Jauch