Notes on Credit Limit

The following table represents the BSS behavior concerning credit limit usage for customers and resellers acting as customers depending on the BSS settings:

BSS Settings	BSS Behavior
Customer Class > Billing Type > Per Subscription Credit Terms > Automatic Charges > On invoice issue date The Prepaid CI Model is disabled.	BSS tries to link all possible open payments or credit memos. BSS charges the remaining amount using the payment method linked to an order (default payment method). If a credit limit is enough, BSS starts provisioning without waiting for the payment completion. Note: The charge through a payment method always goes first, regardless of credit limit.
Customer Class > Billing Type > Per Subscription Credit Terms > Automatic Charges > On invoice issue date The Prepaid CI Model is enabled.	BSS reserves open payments or credit memos for a Not Invoiced Purchase (NIP), taking a credit limit into account. BSS tries to link all possible open payments or credit memos left after the reservation. If a credit limit is enough, BSS starts provisioning without waiting for the payment completion. Note: The charge through a payment method always goes first, regardless of credit limit.
Customer Class > Billing Type > Per Subscription Credit Terms > Automatic Charges > Between invoice issue and due dates / On invoice due date The Prepaid CI Model is disabled.	BSS tries to link all possible open payments or credit memos. BSS creates a fake payment for the remaining amount for fraud screening. BSS checks if provisioning can be started without a prepayment, taking a credit limit into account: If yes, BSS proceeds to provisioning, or BSS waits for a customer to pay manually.
Customer Class > Billing Type > Per Subscription Credit Terms > Automatic Charges > Between invoice issue and due dates / On invoice due date The Prepaid CI Model is enabled.	BSS reserves open payments or credit memos for a Not Invoiced Purchase (NIP), taking a credit limit into account. BSS tries to link all possible open payments or credit memos left after the reservation. BSS creates a fake payment for the remaining amount for fraud screening. BSS checks if provisioning can be started without a prepayment, taking a credit limit into account: If yes, BSS proceeds to provisioning, or BSS waits for a customer to pay manually.

The condition for linking open payments or credit memos (how open payments or credit memos are reserved for NIP) is:

(-Balance) + Credit_Limit - NIP - NIP_Threshold >= 0

The condition for the "is a prepayment required" check is:

(-Balance) + Credit_Limit - NIP - NIP_Threshold - Not_Invoiced_Orders >= 0

Where a Balance > 0 means that a Customer's Debt > 0, therefore, (-Balance) is positive when a Customer has a positive balance on their account.