How to handle Invoices for Domain Names AFTER Invoice has been generated?

[R-n-R]

Question, lets say you have a need to move some domain names to another customers account. Lets call that customer "B"

 

Now in Customer "A" account is where the domain names are currently. And an invoice has been generated already for the renewal of the domain names.

 

You move all the domains from Customer "A" to Customer "B", unable to move Invoices for the renewal of these domain names as WHMCS will not allow it (at least in WHMCS 5.0.3).

CANCELLED Invoice for Domain Name renewal in Customer "A" account.

 

Tired using the Generate Due Invoices in the Customer "B" account and NO invoices generated even though the due dates for the domains are within the 30 day period I have setup in WHCMS to generate invoices for domain names.

 

My guess is to either

1) Manually Generate the invoice to renew the domain name

2) When my Cron runs to generate invoices the renewal invoice will be created then (which is 2:30 am my time)?

 

Which should I do?