As I have already said, you cannot get this to work without macros - and that includes your DocVariable-based example.

So you'll need to either (a) train your users, (b) change their macro security settings, (c) store the template in what Word regards as a trusted location, or (d) give up on the idea of using the calendar content control and having your table populated as a calendar. I'd suggest (c). That way, the macro will run automatically without the users having to enable them and without compromising their general macro security settings.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]