Hi kpax-io and e-aldo, thank you for your feedback! It's helpful for us while this feature is in public preview and we work through issues that are found. We will take this issue back to the team to investigate. At the point of signing into the Company Portal, the device is already enrolled and there should not be an additional management profile coming down. While we don't have a specific fix right now, please make sure you are not sending down any app config policies targeted at the iOS/iPadOS Company Portal app if enrolling your device with setup assistant with modern authentication for iOS/iPadOS. For iOS/iPadOS, the correct app config is already being applied automatically behind the scenes in the enrollment profile, so no app config is needed for the iOS/iPadOS Company Portal. Sending down an additional app config in this case may result in an error. We’ll keep this post updated as we learn more. Thanks!