Section: 5.2.17.2.2 Nchf_SpendingLimitControl Subscribe service operation
Content: Service operation name: Nchf_SpendingLimitControl_Subscribe Description: Subscribe to notification of changes in the status of the policy counters available at the CHF and retrieval of the status of the policy counters for which subscription is accepted by CHF. Inputs, Required: SUPI (for the Initial Spending Limit request), SubscriptionCorrelationId (for the Intermediate Spending Limit report), Event Id "policy counter status change", Event Filter Information "List of policy counter identifier (s)". Inputs, Optional: Notification Correlation Target (required for the Initial Spending Limit request), Event Filter Information "List of policy counter identifier (s)", Event Reporting Information (continuous reporting). Outputs, Required: Status of the requested subscribed policy counters to the subscriber in the Event Information. Outputs, Optional: Pending policy counter statuses and their activation times, for all policy counter(s) available for this subscriber. If list of policy counter identifier(s) was provided, the CHF returns only the pending policy counter statuses and their activation times, per required policy counter identifier in the Event Information, SubscriptionCorrelationId.