We will be adding the ability for administrators to expire external users’ access to entire site collections after a mandatory expiration period, as we discussed at Ignite 2018. That feature will be rolling out in CY19Q3.
An error occurred while saving the commentRune Myrhaug commented
It´s possible to share files with external guest link. But this is not possible on folder level. I would like to have the same functionality on folder level.