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Click Alerts & Notifications on the left menu,
Click the Notification Log tab
Scheduled Alerts & Notifications will be shown first. Click View past Invitations button to see invitations already scheduledsent.
Try to find a specific invitation in list based on the Invitation send time, Recipient, Record ID, etc.
You may need to sort by date to get the most recent to appear or
Use other filters such as Survey Record filter.
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