Zoho Desk - Invoices integration for client's portal

Zoho Desk - Invoices integration for client's portal

Hi Zoho Team,

I have been looking around for a while now and I have not found any solution to this:

There are many Customer Portals. For example, the Zoho Subscription has a customer portal, as well as Zoho Desk, Zoho Analytics and etc. What I need to achieve is my client to be able to access everything under one roof. I need custom Tabs in Zoho Desk. For Ticketing (Which is already integrated), for Analytics, for Invoices and maybe other integrations.

Also, is it possible to integrate an outside service into Zoho Desk? I use AgencyAnalytics to provide our customers with marketing reports and insights.

If all of this requires custom development, could you please refer me to an expert who can set this up for us?

Please let me know!
Thanks.