"You cannot access this right now" error when saving items from Outlook for iOS to OneNote

On an Intune-managed iOS device, when you use the Send to OneNote add-in to save items from Microsoft Outlook for iOS to OneNote, you receive the following error message:

You cannot access this right now

This error occurs because the add-in can't complete device authentication to satisfy the requirements of conditional access. Because the add-in uses the new Office add-in platform that is HTML and JavaScript-based, authentication doesn't work if conditional policies are used. Therefore, WebView between Outlook and OneNote fails.

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