You set up Zoho CRM so the sales team would work from one pipeline. Then customers did what customers in the UAE do: they messaged on WhatsApp. The enquiry, the questions, the price discussion and the yes all happen in a chat, and Zoho only learns about them if a rep stops and types them in.
Most of the time nobody does, or they do it later and partly. A new enquiry never becomes a lead, so it is never assigned and never followed up. An existing customer messages from a number saved as 050 in one field and +971 50 in another, and Zoho ends up with three records for one person.
The reps who do work hard on WhatsApp often do it from their own phones. The conversation lives on that handset, the CRM record stops at the first call, and when a rep leaves, the customer history leaves with them.
So the pipeline report is a guess. Managers cannot see which enquiries were answered, which deals moved, or which quotes were followed up, because the work happened in a channel the CRM cannot read. The problem is not Zoho or WhatsApp. It is the gap between them.