Family Plan workflow

I tested the FamilyPlan, 

1. Signed up as UserA and shared the plan with UserB and UserC.
2. UserB accepted the invitation. 
3. UserC rejected the invitation. 
4. UserA can see the 'Shared Subscriptions from you' screen.
5. 'Accepted' column is blank for both users.

QUESTIONS
What should be the workflow for UserA, UserB and UserC?
Do UserB and UserC get new credentials? How?
Please direct me to any documentation, blog or video regarding this issue. 

 

If sharing with someone that isn't registered it will send them to registration with the plan being shared to them. Once they register and confirm (if enabled) as well as approve (if enabled) then the shared subscription will become active. If sharing with someone already registered it will accept once they confirm using the link. The accepted column should be the date that the shared subscription was accepted.