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User does not see subsequent task even when the tasks are activity chained.
The task is seen in the users tasks list instead.
The number of unattended nodes that exists between two (attended) activity-chained tasks surpasses the (default) maximum number of 50.
You can confirm this by checking the APPIAN_HOME/logs/db_PX** log and check if the following type of entries are seen:
APPIAN_HOME/logs/db_PX**
[Activity Chaining] Could not chain to attended activity. Limit of 50 unattended nodes executed was reached.
Other reasons why an activity chain might break are described in this documentation.
Adding an attended activity with a simple form that says 'Click to continue' is one possible way to avoid hitting this limit.
Your application administrator can also raise the limit setting in a custom.properties file. See also: Configuring Process Execution Properties
custom.properties
This article applies to all versions of Appian.
Last Reviewed: July 2018