Whether custom URL’s would be possible to configure in JIRA

[mayank_s]

Custome URL means to access the project

[Nic Brough -Adaptavist-]

What's wrong with https://yourjira.org/browse/ABC ?

There's no custom url for duplicating the landing point in JIRA (presumably because it's a generally useless function), but you can easily put in redirect pages in your web-server if you want to have a url that redirects to the right place.