This is not possible with the JIRA Service Desk Portal.
You could grant browse rights for the project to anyone, but that would make all of your service desk issue available to the entire internet.
You could add all your customers as jira-users and grant them browse rights on the project (that would ofcourse require you to get extra licenses for you customers).
Hello there Cloud Community members! Today, we’re thrilled to announce Jira Service Management, the next generation of Jira Service Desk. Jira Service Management touts advancements in IT service ...
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