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Trying to add a view to a spo event list that get the total duration of the events in the list. I found a built-in Duration field accessible though PNP Powershell (e.g. $event.fieldValues.Duration) that seems to be reporting duration in seconds. I can add the field to a view using Add/Set-PNPView, but when I try adding -aggregations "<FieldRef Name='Duration' Type='Sum'/>" to the command, I get count=undefined on the list view.

I'm not used to using the -aggregations parameter so I'm not sure of the syntax and have found documentation to be fairly thin on that point.

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You will need to manually create the Duration column in Type of Number in the event list first.

Here is the sample command I test with:

Set-PnPView -List "Test calendar" -Identity "All Events" -Fields "ID","Title","Start Time","End Time","Duration" -Aggregations "<FieldRef Name='Duration' Type='Sum'/>"

And the outcome: enter image description here

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  • I tried that command line and I'm still getting "count=undefined." In your example, you're using the built-in Duration field, yes?
    – steam23
    Commented Jan 29, 2021 at 14:06
  • @steam23 Yes, custom column in the list and the built-in Duration field in the PowerShell. Commented Feb 1, 2021 at 0:58

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