update waiting time after sharing calendar with external user

Hi Julia

Thanks for the feedback.

The issue is after testing it for the past three weeks there seems to be an inconsistency with the syncing process for external users cross tenant and third party ics subscriptions

I have been testing this with several of my clients tenants with my work tenant and personal google account.

Events update almost immediately 50% of the time if it is cross tenant. The other 50% of the time half the events are updated almost immediately while the other half don't update at all. This happens even when you delete the events. One event is removed while the other is left behind.

ICS subscriptions with google only show the existing data any new data is not syncing at all regardless of how long you choose to wait. Only removing the ICS subscription and re-adding it shows the new data.

There seems to be a major issue with calendar sharing with external users at the office 365 level at least is problematic at the moment

Have engineers at Microsoft looking into it hopefully get some results soon