If you have multiple companies set up in Microsoft Dynamics NAV, there may be times when you have to select a different company to work with. The companies that you work with can be stored in the same database or in different databases. If the company is stored in a different database, then you must select the server before you can open the company.
To select a different server and open a company
- On the Application menu  , choose Select Server to open the Select Server window. , choose Select Server to open the Select Server window.
- In the Server Address field, enter the URL of the server that you want to access.  Important Important- The URL must have this format: servername:port/service where servername is the name of the computer where Microsoft Dynamics NAV Server is installed. For example, MyServer:7046/DynamicsNAV. If your company stores data in a dedicated business database that is a tenant of the application, you must also specify a tenant ID as part of the URL. For example, servername:port/DynamicsNAV/tenant1, where tenant1 is the ID of the business database in the multitenancy setup. 
- In the Available Companies field, select the company that you want to open. 
- Choose the OK button to open the company. - The next time that you open Microsoft Dynamics NAV, the database that you were using last is opened. 





