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In your calendar, open a meeting in classic Outlook.
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On the ribbon, next to ReminderÂ
, select the drop-down arrow, and then select how long before the scheduled start time you want to get a reminder.
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In your calendar in new Outlook, double-click a meeting to open it.
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On the ribbon, select theÂ
 reminder, then choose an option from the menu that appears. -
Close the meeting to save the update.
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In your Outlook for Mac​​​​​​​ calendar, double-click a meeting to open it.
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On the ribbon, select the arrow next toÂ
 reminder. -
Close the meeting to save the update.