Profile should have column with type DateTime (Timestamp). Drag “DateTime” control on form, set its Data column property to Timestamp column in which you want to save “Record Timestamp”. Now set “Def Val_Type” property of DateTime control to “Timestamp”. Now when you add or edit record on device side, this field is populated with current timestamp. If you want to do this in background then you can do this by setting “Visible” property of DateTime Control to “TRUE.