Error: "The property '[object Object]' does not exist on type 'SP.Data.StudentsListItem'. Make sure to only use property names that are defined by the type."
Error: "The property '[object Object]' does not exist on type 'SP.Data.StudentsListItem'. Make sure to only use property names that are defined by the type." Cause: The above issue may come if we are trying to add/update the field name (like 'Student_x0020_Roll') but that field is not available in the Students SharePooint list. OR the field ('Student_x0020_Roll') is look up from some other list but we are tryng to updated as text field. ex. var data= { __metadata:{ type:'SP.Data.StudentsListItem' //ListItemEntityTypeFullName for list Student } 'Title':'Ramesh', 'Student_x0020_Roll':'102510', }; Solution: If required Field (like 'Student_x0020_Roll') is not available and required then we need to create it or if not required then we can removed from saving (from data object). If the required Field (like 'Student_x0020_Roll') is lookup then we need to update it as we are updating for lookup...