how to change base url

[Bhoomika]

how to change base url 

[Jack Brickey]

You can actually reach out to Atlassian support and they can change it for you. Note there is a limitation on them doing this. I have heard once and done kind of thing.

[Dirk Ronsmans]

Hi @Bhoomika ,

On Cloud you don't change the base url. You register an instance with a name and that's the name.

If you are on Server however (you mention Cloud in your tags) you can do it with these steps:

https://confluence.atlassian.com/adminjiraserver/configuring-the-base-url-938847830.html