Is there a way to get the Base URL automatically? I am building an in

Is there a way to get the Base URL automatically?

I am building an intuitive URL for an email that is sent to customer. This email link the customer to the process dashboard.
As of now, I am using an expression to create the URL based on the process ID. However I must hardcode the Base URL (https://<host.name>) in expression since the URL will be accessed outside of the browser and I can not use a relative URL

...

OriginalPostID-80558

OriginalPostID-80558