Click Add widget.
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The The Workflow Status Widget can be found under the Workflow Widgetsmenu.
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If Interval Days = 0 then it will show the number of workflows with the corresponding status that run with no interval constrain, if Interval Days = 1 the widget will show the number of workflows with the corresponding status that run in the last 24 hours, if Interval Days = 2 the widget will show the number of workflows with the corresponding status that run in the last 48 hours and so on.
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The Workflow Status Widget displays:
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