process model delete

Question

if we delete process model, does it effect running process instances ?

amans · Accepted Answer

No, running process instances are not impacted. 
 To test this, we created a dummy process and ran multiple instances;

And then deleted he main process, leaving the running instances as it is; 
 
 The processes were still running and were completed successfully;

mayurm168 · Answer

Hi, 
 
Process model is like a Class we define in Java. 
Process model instance is like an Object in Java. 
 
When think in Object Oriented Programming way, we can understand that a Process Model is a definition where as Process Instance is something live in the server, Apparently both don't have any dependency on each other. 
 
When we update a Process Model and publish, it will not modify existing and running instances of same Process Model. This is another cross reference to confirm if we delete a Process Model it does NOT affect running Process Instances. 
 
Hope this justifies your doubts. 
Thanks! 
 
Mayur Mondhe

arpitbhargava@kpmg.com · Answer

Hi, 
 
There will be no impact on any of the running process instances if we delete any of the process model as instances has already been created.

Shiva Valusa · Answer

No, It will not impact on already running process instances. 
If you wanted to apply the changes to already running instances, you need to do process upgrade.