Name of tenant

ArKulha 

Hello,

When creating a new Microsoft Azure tenant or Office 365 tenant, the tenant name can include hyphens, so "abc-mycompany" would be an acceptable tenant name.

However, please note that when choosing a tenant name, there are certain restrictions that must be followed. For example, the name must be unique within the Azure Active Directory (AAD) and Office 365 environment, and it cannot include certain special characters such as spaces or slashes. Additionally, the tenant name cannot be changed once it has been created.

So as long as the name "abc-mycompany" is not already in use by another tenant in the AAD or Office 365 environment, and it meets all the other requirements for a valid tenant name, you should be able to use it for your new tenant.

Hope this helps!