This is difficult for anyone here to help with, barring more information. What does it mean, "they have difficulty logging into JIRA." That sentence means nothing about the problem itself.
Screenshots, a step-by-step walkthrough, you need to provide more details.
Furthermore you really should take this up with Atlassian proper, since this is specifically about supporting their JIRA Cloud product – https://support.atlassian.com
In the past, Portfolio for Jira required a high degree of detail–foresight that was unrealistic for many businesses to have–in order to produce a reliable long-term roadmap. We're tur...
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