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The above helps to qualify who is eligible for the upgrade or not. This means a call operator will be the one to qualify customers and disqualifying others based on the rules that each NGU is going to set
The main difference with the current upgrade model in ERP is:
No system CP validation
No expiry date validation
During the time of the upgrade, the customer undergoes a credit check
During the period of the upgrade, the customer goes through a credit check to get another upgrade
A completed customer with an upgrade will be credit checked if he gets another upgrade throughout the period he is paying for that upgrade
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