Credit coverage divides an available balance by an estimated daily consumption rate. It describes how long the balance might last under that usage assumption, not the duration of customer subscriptions. If consumption varies by product or day, use a range and keep the uncertainty visible.
Use the available balance
A balance already committed to pending activations is not fully available for new work. Keep pending and completed actions separate. Do not count a planned top-up as usable inventory before it is actually confirmed.
Choose an honest usage window
A single busy day can overstate normal demand, while a quiet week can understate it. Compare recent periods and note any event or promotion that changed usage. No historical average guarantees future activity.
Keep coverage and expiry separate
Twelve days of estimated inventory coverage does not mean the credits expire in twelve days. Credit-expiry terms must come from the service. Likewise, the estimate does not describe when customer subscriptions end.
A practical sequence
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An example to work through
A balance of 120 credits at a hypothetical ten credits per day has twelve days of estimated coverage. At fifteen per day, it has eight days. Neither figure is a credit-expiry policy.
Questions about this topic
Is coverage the same as credit validity?
No. One is a usage estimate; the other is a contractual term.
Can this predict exact sales?
No. It models inventory use under stated assumptions.
