I. Release Notes
Current Version: 6.2
(Version 1.0 to 4.0 have been released as Successfully Invited Members)
Requirements: Ossn >= 6.5
GDPR affected: Most likely Yes. Since the component intransparently stores information about who invited which member(s) - visible to site admins only - you'd better mention this in your data protection declaration.
License: GNU General Public License v2
II. Purpose and Usage
The idea behind this component is increasing kind of a members_invited counter of an already existing member (the inviter) whenever the invited member has registered (as requested by Balamurali https://www.opensource-socialnetwork.org/discussion/view/5320).
The administrator is shown at the top of each EDIT USER page by whom the member has been invited and how many successful invitations the member has made.
Figure 1

There is also a ranking list sorted by the number of invitations.
Figure 2

III. Changes
V 6.2
- applied compatibility fixes for changed admin backend menu handling introduced with Ossn 6.5
V 6.1 (compatible up to Ossn 6.4)
- Ossn 6.x support
- verified PHP 8 compatibility
- added missing localization
Outdated Ossn 5.x relases (showing the progress of development step by step)
V 5.0
- will add a new page named 'Inviter Ranking' to the admin backend
- will decrement the invitation count when the account of an invited member gets deleted
V 4.0
- is replacing the former low-level handling of entities by a much smarter method
- besides that two new language files are introducing Ossn localization because it's a good practise to support all available Ossn core languages with your component
- error logging has been commented out now, and the number of invitations have been added to the backend.
V 3.0
- comes with a new method to add the invited_by attribute to the invited member's user record, and the successfully_invited_members_add_invited_by_field_to_admin_backend function has been completed to display the real name of the inviter instead of the formerly hardcoded Mary Greg.
V 2.5 'Mary Greg'
- is displaying Mary Greg as inviter on every user page on the admin backend.
V 2.0
- will add the necessary code inside that method to create and update the members_invited records in the ossn_entities table.
V 1.0
- is a first skeleton preparing the basic setup in ossn_com.php and a dummy method in the SuccessfullyInvitedMembers.php class file.