Hi @Magda Żołubak ,
Are you using Outlook desktop client?
If so, you could follow the steps below to find the calendar items scheduled by specific user:
- Run your Outlook desktop client and select the Calendar Tab
- Click View > Change View > List
- Then click View Settings and select Columns
- Select available columns from All Appointment fields, find "Organizer" and Click "Add" button
- Click OK and then you will get the display like below
- You could sort by "From" to get your calendar items from different user, and then manually remove those you do not want to keep.
Hope this can be helpful.
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