Hi @pro tech ,
there are some restrictions but not many:
https://learn.microsoft.com/en-us/azure/site-recovery/hyper-v-azure-support-matrix#azure-vm-requirements
https://learn.microsoft.com/en-us/azure/site-recovery/hyper-v-azure-common-questions
Are G1 and G2 VM's supported? yes
Are VHD's and VHDX's supported? yes
Are fixed and dynamic disks supported? yes
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Regards
Andreas Baumgarten