By default, OData returns only data that belongs to the user’s
default company. To see data from outside the user’s default company,
specify the ?cross-company=true query option. This option will return data from all companies that the user has access to.
Example: http://[baseURI\]/data/FleetCustomers?cross-company=true
To filter by a particular company that isn’t your default company, use the following syntax:
http://[baseURI\]/data/FleetCustomers?$filter=dataAreaId eq 'usrt'&cross-company=true
Original Post http://dynamics365ax2012.blogspot.com/2022/06/power-bi-multiple-companies-d365-f.html