When I click on a lot of URL's from my company, the URL starts with companyname_city... .
I inherited this from the previous sysadmin. So OneDrive main site opens with companyname_city, a lot of SharePoint sites open with copanyname_city.
The problem is that our company has more than one city with branch offices and the main site isn't even the city that gets mentioned in the URL. The tenant name itself is ok that's just the companyname like it should be.
How can I safely change the URL's so OneDrive opens like this:
companyname-my.sharepoint.com and not companynamecityname-my.sharepoint.com ?