Hello edgolbas
My name is Dayarys. I am an independent advisor, I will try to help you.
Synchronization of calendars between Outlook and your Apple iPhone or iPod touch requires Apple iTunes, then follow the steps below:
-Connect your iPhone or iPod touch to your computer using the cable provided with your device or by placing the iPhone or iPod touch in the Apple Universal Dock.
-iTunes opens automatically when connected to your computer.
-In iTunes, in the source list, under Devices, click the entry for your iPhone or iPod touch.
-Click the Info tab.
-Under Calendars, click Sync calendars from, and then click Outlook.
-Do one of the following:
1- To synchronize all calendars, click All calendars.
2- To limit the calendars that are synchronized, click Selected calendars, and then click the calendars you want to synchronize.
-Click Apply.
Reference: https://support.microsoft.com/en-us/office/sync...
If you need more help, just write to me here.
Best Regards,
Dayarys