Changes to a user seen in Postman, but not in Atlassian Guard

[Saf]

Hey

Whenever I do a change to a user in Postman, such as updating the email, it never appears in Atlassian Guard. The email stays the same.

What could the reason be?

I am using the free trail version and all my users have their status set as "invited" and have still not received the invitation email. 

Any ideas??