Hi Team,

When we test , we created a Power Pages Portal for Customers to grant access to different applications and manage them for their company. As an internal employee he/she can grant access to different applications. As a customer he/she should be only allowed to grant access to an application where he has access to as an External Customer Responsible.

As currently this is by design, It would be great if this feature works like OOB without any issues.

Regards