Process does not show User Input Task

minalabib over 7 years ago

I had a process model that has sub-process, events, script tasks and user tasks, and it was working fine, recently I had to updated the process model and added a sub-process right before the user task that will run multiple sub-processes synchronously and then start a user task; after the update and running the task from the end-user site the process runs but it won't show the user task although it is created and user has to go to tasks tab to access the user task.
Any idea what is going? or any setup that I need to change for that to act as expected?

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0 Colton Beck over 7 years ago

Please ensure you have proper activity chaining enabled. This usually happens when a link in the chain is missing.
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0 Colton Beck over 7 years ago

docs.appian.com/.../Configuring_Activity-Chaining.html
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0 PhilB
A Score Level 1
over 7 years ago

You could also be breaking the chaining limit of 50 (by default) unattended nodes.
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0 minalabib over 7 years ago

The chaining looks fine to me, it might be theh 50 unattended nodes limit, as the sub-process runs multiple times and it has large number of nodes ..
what would be the best practice in that case ?
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0 aloks0189
Certified Lead Developer
over 7 years ago

@minal as @coltonb already mention, please enable activity chaining for each and every node within each and every subprocess till the User Input Task, if anywhere it gets missed, then again you need to go to task tab and manually pick-up the Task. Also there is some fixed duration in seconds(specially between one to another User Input Task node) if that exceeds before the flow reaches till the User Input Task node, then also the activity chaining will get break.
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0 Colton Beck over 7 years ago

What is your use case for looping the sub-process? Maybe there is a better way to meet the requirements.
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0 minalabib over 7 years ago

the sub-process is called number of times equal to process variable list length the configuration is attached.
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0 Colton Beck over 7 years ago

Is it not possible to handle every index in that array in a single sub-process instance? Are you only writing to database tables, or are there other, more complex activities happening in the sub-process?
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0 PhilB
A Score Level 1
over 7 years ago

Also how many unattended nodes in the sub-process and any child processes?
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0 ChristineH
Certified Lead Developer
over 7 years ago

you could try having a sub that you chain, pass your data to another sub that has the MNI set up. That way, the first sub starts asynchronously and then chains to the user task, but not to the MNI. Just a thought to get away from the max node instance.
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