Increase the computer group limitations for Update Management. Patching a few hundred to a few thousand machines with this 100 machine limit is not very scalable.
Thanks for the feedback. We support groups up to 500 computers large in the Azure Portal, but we hear that isn’t enough and we can look at increasing this up to “a few thousand”. Please feel free to post your desired maximum group size in this item so we have a good sense of what the requirements are.