Overdelivery

Overdelivery is when a supplier delivers more than the quantity ordered, often a small extra added on purpose to offset early drops, without charging you for the surplus.

Some suppliers add a margin above the quantity because they expect part of the delivery to drop within days. Others overdeliver by accident, because delivery runs in batches and the order is not stopped the instant it reaches the target. Either way, the extra is not charged, and the order is still marked completed against the quantity you ordered.

Overdelivery changes how refill checks treat you. A refill request is compared against the start count plus the quantity ordered, not plus the amount that arrived. If you ordered 1,000 and received 1,100, the first 100 that drop do not take the count below target, so a refill request is refused until the count falls under the start count plus 1,000. The surplus is used up first.

It also blurs the check on completion. If you see more than you ordered, the arithmetic cannot tell you whether the supplier delivered extra, whether the profile grew organically at the same time, or both. That matters little on a single completed order, but it can hide a shortfall when two orders on the same link overlap.

What it does not mean

Overdelivery is not a bonus you can claim, request or carry over to a later order. A service that overdelivered last time may deliver exactly the quantity next time, and an order that arrives short is not offset by extra that arrived on another order.