When you create a simple push variant for an application you don't have to supply any details this will give a result as depicted in the screen shot. Because the Name is empty this line is not clickable and you cannot find the variantId.
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira