When a user is invited to a social group, they might not be able to join using the link sent by Jive. This article provides the steps on how to resolve the issue.
Jive Interactive Intranet AWS/Cloud/Hosted (any version)
Verify if the user is using a Jive link similar to the one below:
In case the customer is using a link with a different structure/format, please check the solution outlined in the Incorrect URL for Group Email Invitation article.