I have a Process Model in which last node is as same as start node's interface , this last node is just showing some grid on the same interface after getting few details,
But the problem is this , the last node is working if I monitor it but it won't show it's result on site instead it refreshes the page and start a new form to get submit.
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I think you might have forgotten to enable the activity chaining between the 2 nodes.
docs.appian.com/.../Process_Model_Recipes.html
I did , Also everything which is basic and required I did that too
Hard to say from the limited information. Would require some screenshots and maybe the code in the interface(s).
This last node is running if I monitor this PM but not show up on site and without completing the process a new Instance starts.
Where is the original input task or start form where it's coming from?
Also - are those sub processes synchronous or asynchronous? If they are synchronous, did you enable chaining inside of them?
yes, They are synchronous and I enabled activity chaining inside them
There must to be something in your process that is breaking the chain.