000496: Table is being edited.


Schema changes such as adding or removing a field from a table, can not occur while the data is being edited. The tool or the option used doesn't support execution in an edit session.


Complete your edits, then run the tool. To save or discard edits, on the Edit tab, in the Manage Edits group, Save Save Edits and Discard Discard Edits save and discard your edits, respectively. See the tool's help for more information.