Sub Process vs Start Process

Question

In new 24.4 we have Synchronous and Asynchronous option for Start Process smart service . Then what's the difference between Subprocess Synchronous and Asynchronous things ?

James Lepone · Accepted Answer

You can see an outline of the differences in staring processes in the docs, here: docs.appian.com/.../Ways_to_Start_a_Process_From_a_Process.html

Stefan Helzle · Answer

I covered some aspects of this in my recent blog post on version 24.4. 
 https://appian.rocks/2024/12/09/appian-244-insights/

Mike Schmitt · Answer

AFAIK this is basically just a case of "feature convergence" - originally-separate features being fleshed-out (separately) to the point where they become nearly interchangeable, if not totally interchangeable. 
 They may be planning to phase out the classic subprocess node altogether - though it's impossible to say either way. The "start process" node needs a few more improvements before that can happen, though. 
 
 the node icon needs to let us differentiate synchronous from asynchronous, like the subprocess node currently does and traditionally always has 
 it needs to more-flexibly handle opening the subprocess from the parent level; running subprocess instances, for example, as well as subprocess model when defined by expression (at least when defined by something stupidly-easy / nonconditional, like via a single constant) 
 probably needs the ability to pass variables by reference, for the rare occurrence when it's the only way to handle something 
 when searching a model by name in the process model editor search bar, we need a way to "drag and drop" the target model as a Start Process node instead of (or preferably, in addition to) the classic subprocess node.

Sub Process vs Start Process

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