What does the UM stand for in the in the Salesforce instance naming? EU: Europe NA: North America UM:????
Is it new or has it always been present? Never noticed it and I have just found out that my instance will be there in January
It refer to London, UK (North) / London, UK (West).
As per docs: We will soon have two geographically dispersed data centers in the London, UK metropolitan area - London, UK (North) and London, UK (West).