Add an opportunity status

Go to the Configuration menu → System Values: Advanced → Opportunity Statuses.
Click the Add button on top of the Opportunity Statuses table. You will be directed to the Add Opportunity Statuses page.
In the Name field, provide the name of the new status.
In the Probability field, provide the percentage that reflects the probability of winning the deals with this status.
Decide whether this status should be Active and thus selectable.
Decide whether this status should be marked as a Preferred Item and thus appear on top of the drop-down lists.
Decide whether this status should be a Default one.
With the Use when adding on the basis of a quote checkbox, decide whether this status should be a default one for quote-based opportunities.
Click the Save button.