Cliq allows one organization per domain model to prevent multiple organizations from being created under the same domain. As a result, only one organization can exist under a company domain to prevent any confusion and communication issues. Let us look at an example for better clarity.
Now, Amelia Burrows (another admin) creates an Org Zylker Tech having zylker.com as the domain in another Zoho product (Mail, Desk, etc.).
Since there is already an Org created under the same domain, Amelia Burrows cannot create the new Org and will be asked to leave Zylker Tech Org and to join Zylker Org which is in Cliq.