Invalid Tenancy Name
I am working on an ASP.NET Boilerplate service project. When I am saving a client, it returns an error: Tenancy Name is not valid The tenancy name contains spaces. TenantDto maps to Tenant object without any error. Database table TenancyName column is nvarchar(64) . Error occurs when it is saving. From the documentation on Tenant Management : AbpTenant class defines some base properties, most important ones are: TenancyName : This is unique name of a tenant in the application. It should not be changed normally. It can be used to allocate subdomains to tenants like ' mytenant .mydomain.com'.