Windows Server Backup - Running Backup on both Hyper-V and Hyper-V VMs at the same time

Hi,

I have this scenario which I need clarifications.

My environment:
Hyper-V host running Windows Server backup for my VMs.
My VMs have Windows server backup installed in them and running as well.

My question is, if my Hyper-V host is doing a backup, and my VMs are also doing a backup at the same time, will there be a conflict?

Has anyone attempted this before and if this safe to do so? 

Thanks for the help.