Understand held, paid and available units
A basket is not a completed sale.
Compare the meanings of edition size, reserved and paid.
In this lesson 2 steps + optional extras
Currently available units can be lower than the edition size because checkout reservations temporarily hold units.
- 1This is the reserved example. These are simulated local figures.
- 2All units are temporarily reserved; this is different from paid and sold out.
What you should seeThe counter separates paid units from temporary checkout holds.
The checkout grace period allows a started checkout to finish under its rules. Do not promise that a visible counter guarantees a unit until payment is confirmed.
- 1This is the open example. These are simulated local figures.
- 2Read available, paid and reserved separately. The allocation is shared.
What you should seeAn existing checkout may have a grace period; new purchases follow current availability.
Go further 3 optional topics
You have the core task. Explore these extra tools whenever you need them.
The server resolves concurrent purchases; two people seeing the last unit does not entitle both to it.
What you should seeTwo shoppers cannot both purchase the same final allocation.
Late or uncertain payments need to be checked. A browser return alone does not prove a paid drop unit.
What you should seeAn uncertain payment remains under review without assuming a sale.
Creator samples and replacement reprints are excluded from drop sales allocation. Paid edition units stay consumed after refunds.
What you should seeSamples and replacement work do not consume the retail edition.
Give it a try.
Compare the meanings of edition size, reserved and paid.
Open Limited drops Opens separately. Paid and destructive actions are never required to complete a lesson.The last units are held by unpaid checkouts. What can happen next?
Optional. No grades, no locked lessons.Ready to mark this one complete?
You choose when you have learned enough. No quiz score or business action is required.
Loading progress…
Sign in to save progress across devices