I have a custom domain name setup for my books account - one proble i have is that although my domain names are easier for zoho services i.e book.domain.com or support.domain.com my clients have a harder time remembering the client portal address which is more like:

https://invoice.domain.com/portal/portalname/login

my clients are constantly losing this link and have to ask me to remind them of it, and even i cant remember this url chain.

why couldnt it be invoice.domain.com/client or even client.domain.com or portal.domain.com etc like all other zoho services - it would be nice to be able to map a specific domain for the client portal itself.