With BC it is possible that vendors add value via their own AppSource extensions. When multiple vendors are involved in the complete solution for one customer within one environment, it should be possible that both vendors are able to look at the application insights telemetry simultaneously. Unfortunately, it does not seem to be possible to add multiple strings to the TAC hence only one partner is able to look at the telemetry while the other needs to wait for input of the other.

Repro:

1. go to https://businesscentral.dynamics.com/<>/admin
2. select an environment
3. add the instrumentation key
4. try to add a second instrumentation key and note the error

Error:

You must enter a valid connection string. Example: InstrumentationKey=00000000-0000-1000-8000-000000000000;

Note that there is value for Microsoft to grant this idea as the other partner will always file a request to Microsoft support.