If the user does not have access to your instance you have to go to admin.atlassian.com and invite the user, or if you are using Atlassian Access, grant the user a Jira license. Once that is done, depending on your permission scheme in the project, you may have to add them under Project settings > People to one of the roles.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.