Through a series of circumstances I have gone from no status to gold and will be platinum by the end of the year. I have yet to stay at a Marriott since obtaining gold status but have read the rules about upgrades. I wondered if there are practical things I should do in addition to just showing up.

Should I call ahead or ask about the upgrade when I check in. I would assume from the information on the program I just check in get me the room I should be entitled to. Do I need to do more or is everything pretty automatic?

If I need to do more what is a good approach?

Thanks