Add Approvals when a new User has registered.

[Libaro-Jens]

When a new User registers on the platform, one (or more) Company Admin(s) should approve the new User before they can add orders etc.

[BertCly]

breakdown:

• show feedback to the visitor after registration. "Your registration was submitted for approval. You will be noticed by email."
• add a team page with existing and new users
• show approve/deny button next to new users
• send a mail with the decision to the new user