Surface Pro 7 Overheating when charging

Like all computers, it is designed to power itself down in order to prevent permanent damage to the device when it becomes too hot. But temps have to exceed 100C in order for this to happen, which means the device is becoming incredibly hot. I imagine you must be using a 3rd party case to protect the Surface Pro? If this is true, remove it from the case. Most Surface Pro's are passively cooled, meaning there is no system fan to expel excess heat. Instead the Pro is built of magnesium to act as a large heat-sink and draw heat away from the CPU. With a case, the heat has nowhere to escape.

My client Toney Johnson Real Estate is having the same issue. Machine locks up and shuts down. Is there a fix for this?

I didn't use any 3rd party accessories with my SP7. I was only using the surface type cover and surface pen. I absolutely love the Surface Pro lineup. Currently have a Surface Pro 6 and Surface Laptop 3. It's interesting that the Surface Pro 6 doesn't experience the same heating issue as the 7. I imagine it's a result of the fast charging feature. My SP6 would perform better than the 7 after prolonged periods of heavy tasks, I imagine because it's not thermal throttling. I really wanted to keep the 7, but considering my 6 performs better in some cases, it wasn't worth the additional cost. I'm hoping the SP8 will have these issues resolved, or that they'll be able to really optimize the SPX's 64-bit emulation software.

I found I could not have a cover that fully covered the back of the device while it was operating. Also, I could not leave it on and close it (while closed my cover goes flat on the back) and/or place it in a carrying case with no air circulating.
Since purchasing a different cover (which allows air to flow on the back while propping it at an angle) and turning it off when closing it for a prolonged period of time, I have not had further issues.
I really like the surface pro and I needed this size, weight with enough functionality for my photoshop app etc and a touch screen so I deal with it, it's a bit of a pain to be this careful but at least I found a workaround for my particular device.

I just recently returned my SP7 due to this overheating problem. I also monitored the CPU temps, which are technically safe in the 60C - 70C range, but the back of the device becomes incredibly hot and uncomfortable to use. I was concerned with the long term effects of this excessive heat so I ultimately returned mine.