This is a case where the client sub-account that is connected to WhatsApp Coexistence doesn't have the option to disable it.

Solution

In this case, clients are using Coexistence for the number. The WhatsApp Coexistence feature allows businesses to use their existing WhatsApp Business App account with the CRM's advanced tools, powered by the WhatsApp Cloud API.

This is built for WhatsApp businesses who primarily use the WhatsApp Business App today and are looking for advanced tools to manage conversations at scale, or to integrate complex needs such as payments, shipping, and lead management to optimize business outcomes.

The client can disconnect the integration from their WhatsApp mobile app by clicking on the Disconnect button.