I am trying to customize the forms used to add and update Summary Tasks in a Task List in SharePoint 2010. When I try to open the form in InfoPath I get an error 'Customizing the form for this content type is not supported.' I have Already made sure the content type is NOT read only, which is the only suggestion I can find and it has no effect whatsoever.

Is there something I am missing?

Thanks, Dan

1 Answer 1


unfortunately , summery task in SharePoint List and also Project Center in PWA can't be updated because it's a cumulative task to all child tasks that it calculated automatically based on build-in formula.

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