There are also some ideas already out for this topic but I was told to create a separate idea for this topic. Nevertheless Upvoting the others might help to push this topic.
The issue is, that guests get automatically deactivated after being inactive for 30 days. This option can either be switched on or off. There is no chance to change the days.

And the reactivation has to be done by a Company Admin. Especially for large organizations, this is a nightmare. Therefore this feature needs to be reviewed. I see the following solutions:
- Allow to modify the days for deactivation. Could even be a time range between 30 to i.e. 180 days.
- Allow Team Admins to reactivate guest in their Team
- Allow the creation of a role where the reactivation for deactivated guests can be granted.
This is for us really a high priority issue as it binds time for the Company admins.
Thanks.