To Add the Field Client-Side Status in the context of leads refers to custom status labels that a company can define to track the progress or state of a lead from the client’s perspective.
To display this field on the Lead Pagepage:
Go to Administration > CRM Settings
...
.
Enable the option "Use client-side lead status."
This will allow the field to be displayed and managed directly on the lead pageOnce enabled, the client-side status field will appear on the Lead page, allowing users to view and manage it directly.
Status types can be added using the Edit custom client-side statuses for leads hyperlink.
...