Sometimes I'm getting such information in Dynatrace UI:
You've used up 75% of your X00000 DEM units. Real user monitoring will be disabled if you exceed your quota.
there would be good and convenient to get those notifications on e-mail, slack or other messaging service to not miss important information. As a environment administrator i'm not using ui so often. Please add such feature
I think this falls under: https://community.dynatrace.com/t5/Dynatrace-product-ideas/RFE-Problem-notification-for-Dynatrace-Cl...
You might want to comment on the above product idea to provide more context.