I am trying to retrieve data using the JSOM model, and trying to figure out the last modified date of a SharePoint List Item,

Its really strange when I am trying to retrieve the Last Modfied Date from the item

OneListItem.get_item('Last_x0020_Modified'); => Shows Created Date
OneListItem.get_item('Modified'); => Shows Modified Date

My question is if, the option 2 is already working, why does 1 even return the data and if it actually does, why does it return the created Date?

Seems to be a bug Isnt IT?

  • I think it's list items versioning related but I couldn't understand how it really works.
    – Salah
    Commented Apr 29, 2019 at 13:32
  • 1
    Is Last Modified a user added or calculated column? "Modified" is the expected name. Commented Apr 29, 2019 at 16:04
  • 1
    Last Modified and Modified are both Date type columns. Commented Apr 30, 2019 at 8:23

1 Answer 1


Last_x0020_Modified seems to be a custom column and not a internal, automatically updated, one like 'Modified'. You would have to look at how that column is populated.

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