Update other column values when the form is edited by user Nintex forms for office 365

Hi - I have a workflow that triggers an email with an embedded edit url, to open the record in Edit mode so that user can update information in "EmployeeDescription" text box. At that time the following 3 columns are set to the values below:

Status = "Need Information" column type Choice

Activity = "Pending" column type Choice

EDTemp = "NA" column type Single line of text

edit url: https://ComX.sharepoint.com/sites/EmployeesMain/Lists/ActiveEmployees/EditForm.aspx?ID=1

when they submit the changes in the Edit Form, irrespective of update to "EmployeeDescription" text box, I need to update the columns to following values

Status = "Waiting on admin"

Activity = "Approved"

EDTemp = "IsEditModeYes"

I have tried add Rule for EDTemp column in the Nintex forms, for when the form is in edit mode update the value for EDTemp, but its not updating the value. i need to update the 3 columns above when the user save the changes in the Edit form.

Can you please help/guide how to resolve this. I'll really appreciate any help.

Thank You.