@Tapas This is perfectly normal what you are seeing, after the devices have been enrolled for 30 days this message should dissapear. " If you’ve acquired devices from sources other than Apple or participating Apple Authorized Resellers or carriers, they can also be added to Apple Business Manager using Apple Configurator 2. Manually enrolled devices you set up behave like any other enrolled device, with mandatory supervision and MDM enrollment. However, the user has a 30-day provisional period to remove the device from enrollment, supervision, and MDM. " Source Apple - https://www.apple.com/business/docs/site/Apple_Business_Manager_Getting_Started_Guide.pdf
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