While Node
From PresenceWiki
While Node
In Presence Tasks, it is impossible to link a Node into an earlier Node in the Execution Path as this leads to infinite recursion.
However looping functionality is often desirable, and the While Node serves this purpose - it will continue to repeat execution of subsequent Nodes as long as the conditions specified are met. This Node is most useful if you wish to repeat a process a certain number of times, or as long as certain other conditions remain true.
Here is an example of a pseudo-Task that uses a While Node: