I am afraid that these calls don’t work anymore. There was a major work with restructuring the asset model and it might be that these calls aren’t supported anymore. @Rich can you elaborate?
It’s a very sad news, but how can i simulate updating an asset location from a 3rd-party application without using a real IOT device, just from a HTTP request or other way.
The endpoint you mention is for interrogating the asset model but your title asks about updating the location attribute of an asset, if you want to update the location from an external system then you can use: