RE: Environment Migration In Business Central
Hello,
This is unfortunately not a supported scenario as we have no infrastructure supporting UAE environments in other Azure reagions.
The only Azure region available for UAE is UAE North.
learn.microsoft.com/.../apptest-countries-and-translations
For a visual overview of where D365 Sales / Business Central online are deployed, please review dynamics.microsoft.com/.../
United Arab Emirates Partner W1 Available AE UAE North

The process for transferring a Business Central environment ( Tenant to tenant migration) to a different Azure AD tenant will be a self-service scenario valid only for scenarios where BC environments renamins within the same Azure region being moved to a diferent AAD.
This is will not change the way that Microsoft is managing the D365 BC SaaS infrastrusture ( BC SaaS env assignment/updates ).
learn.microsoft.com/.../tenant-admin-center-environments-move