Set the reminder for 1 day and then when it pops up, change it to one hour.

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Milly Staples [MVP - Outlook]
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After furious head-scratching, Warren asked this group:
| I would like to send a reminder of a meeting to my client's 1 day in
| advance of the meeting and then 1 hour before the meeting but
| currently I can only find that the appointment only has one reminder
| option and I need two.