Forum Discussion
Can't configure external sharing per site basis for SharePoint site that is connected to O365 Group
Updates are given below the original post Original post --- Security Concern - Not being able to configure external sharing per-site basis for any SharePoint Online site that is connected...
You ultimately received your answer from Microsoft, but ideally you'd place the most restrictive setting at the tenant level. You can then create a custom provisioning process that allows the end user to select their desired sharing setting and as part of the provisioning process, set the sharing setting at the site level appropriately.
That was not an answer but just acknowledging the issue. The issue is - when you set the sharing setting for SharePoint at the tenant level, then those settings are inherited for any O365 Group connected SPO site and you can't apply users desired sharing settings per-site basis via custom provisioning. If the site is NOT an O365 Group connected SPO site then customer provisioning would work. Give it a try.