When you sign-up MedanAja typically generates a username from a user’s email address by default, removing the domain part of the email(e.g. @gmail.com).
So… jon-doe@gmail.com becomes ‘jon-doe’ (user name).
jon-doe@yahoo would become ‘jon-doe8’ (using 8, or some other differentiator).
You can login with your ‘User Name’ or your full email address.
User names cannot be changed.
You may access your profile page via the top menu…  {Your username}/settings
You may upload a profile image or your company logo to your profile page.
By default your user name will show below your profile image, and visible when listing adverts.
But, on your profile page you may enter a first name (company name). This first name will override the username when showing your profile.The last name is optional.