2 answers
@Nagendra I am referring to the this documentation : https://developer.salesforce.com/docs/atlas.en-us.api_console.meta/api_console/sforce_api_console_opensubtab.htmIt suggests that if I pass ID of a subtab , the newly opened tab will override on the passed TABID & not create a new tab. But I am not able to achieve this behaviour as it always opens a new tab.Refer attached screenshot