In Merchant API - is business location_id unique?

hey does anyone know: in the Merchants API - is the business main_location_id unique across all Square businesses or should I rely on it being unique only within the context of a single business? or a single country or other region?
I wonder the same thing about the location_id in the Locations API - is there a boundary on the uniqueness that is specified?

Hello! The location_id is unique across all of Square so the main_location_id will also be unique.