We are a software company so we setup solutions for the other companies. I guess we are not unique in this regards :) so I would like to know if we should create a new subscription each time or just a resource group.
We've tried adding a subscription for each customer. This way, we could just change the admin profile and they could completely move away from us. The billing is also OK, since we receive a different email for each subscription, but managing them is becoming a real headache.
From what I read, I guess we could work with resource groups instead of subscriptions and handle the billing part with tags (haven't tried it yet. can we?) but then I'm afraid of not being able to move it to another subscription when they've asked us.
Is it even possible? How easy is that? Does it envolve contacting support?
Has anyone tried it?
I would advise against billing using resource groups and tags. The reports are a real mess and 100% unusable. Also, its a lot of extra work for nothing (seriously, do you care if you have 1 subscription or 10?) and adds no real benefit.
Also, you can move resources across subscriptions of different tenants. Best way of handling this is doing a subscription move. That way you dont have to do anything else. They just link your subscription to another tenant and you are good.
I'm talking from a perspective of administering dozens of subscriptions, and believe me, if you move away from subscriptions to resource groups (as a billing\security boundary) you will get completely devastated by the increased complexity of what you are doing.