When attempting to Add, Edit or Display a SharePoint List Item; a HTTP error 404 appears. This issue was only specific to a certain list of this site; other lists/libraries of the same site are working corrrectly.


The following URL was failing:

It was determined that the correct URL to this form should be:

The binding for the K2 Runtime site URL was pointed toward an older binding which was no longer valid (; instead of the currently valid one (

The value in the hidden 'K2 Settings' list for this site is correct.


To resolve this issue, navigate to [K2 Application > Settings > Form Settings] for this list and perform the 'Save' option. This will update the appropriate URLs to the currently correct bindings.