How to change the property of project key pattern from server

[Bhargavi Vasa]

I want to update project key pattern from ([A-Z][A-Z0-9_]+) to ([A-Z][A-Z0-9]+) 

How to update it from server?

And if it's updated from server,will there be an effect anywhere if any project using underscore?

[Nic Brough -Adaptavist-]

Hi Bhargavi,

The pattern only gets checked when you are creating a new project or changing the key of an existing one.  Existing projects with _ in their key will continue to work as they do now, you just won't be able to create new projects, or re-key existing ones, to keys with a _ in them.