A 2-part questions pertaining to access permissions.

[Hassan Murtaza]

I have a quick 2-part question:

If we are working with a vendor who has their own Jira account (that they paid for) can they have access to our Jira ticketing system and go in and make edits?

Can people who do not have a licence still look at it (go in and view)?

[Nic Brough -Adaptavist-]

Probably not.

A Jira licence/subscription is "the right to use the Jira system the licence/subscription applies to".

It's not "you can use any Jira in the world", the licence is for the Jira system, not a person. 

So, I suspect your vendor has their own Jira, which their users have licences to use, and you have your own Jira.  In which case, the answer is definitely "no", because the systems are licenced separately.

You can, of course, add your vendors to your Jira, or they could add you to theirs, but that would consume another licence on the target system.

For unlicenced users, yes, if the system admins open up the system to "anonymous access", then it is possible to expose the issues to the world - you don't need to log in to see anonymously accessible projects.