This page is for anyone who must respond when a rush order arrives asking for capacity a line does not currently have free, because that capacity is already booked to other work. This lesson mainly teaches a decision: which of the real options, bumping a booked order, delaying the rush order, or running paid overtime, actually closes the gap, and at what cost.
This matters most at a factory like Delta Garments, where a rush export order for Northline Apparel can arrive needing capacity on a line that already carries a domestic Make to Stock run for Cedar & Co. in the same week, a hybrid mix of both business models on one shared line.
Without weighing the real options against each other, a production manager can treat a rush order as automatically more important than booked work, bumping an order that had every right to its own booked capacity. This lesson gives the method: find the shortfall between the rush order's request and the line's free capacity, then compare the real costs of bumping booked work, delaying the rush order, or running overtime, before choosing.
You need: the free-capacity method from lesson 11.5.1. You do not need to have weighed a rush order against booked work before.
By the end of this lesson you can:
Not covered here: the free-capacity method itself (lesson 11.5.1), splitting an order across lines (lesson 11.5.2), and assembling a complete booking plan across every active order (lesson 11.5.5).
| Term | Meaning |
|---|---|
| Booking sheet | A shared record that lists which lines are committed to which orders, in which weeks, and how much of each line's capacity each commitment uses, so every booking can be checked against the same total. |
| Overbooking | Booking more quantity onto a line or period than its actual daily capacity can produce, so the booked total exceeds what the line can deliver on time without added cost. |
| Make to Order (MTO) | Production starts only after a specific buyer has confirmed a specific order, with quantity, price and delivery date agreed. |
| Make to Stock (MTS) | Producing against the seller's own sales forecast, rather than a single confirmed buyer order. |
| Hybrid production model | A company that runs Make to Order and Make to Stock lines side by side, usually split by customer, product line or channel. |
A rush order arriving for a line with insufficient free capacity does not automatically take priority over work already booked there. The shortfall between the rush order's requested quantity and the line's free capacity must be closed by one of a small number of real options, each with its own cost: bumping (delaying) a booked order, delaying the rush order itself, or running overtime to cover the gap. The right choice is whichever option costs least once every option's real cost is actually calculated, not whichever order feels most urgent.
The shortfall: the rush order's requested quantity minus Line 1's free capacity before the rush request.
A production manager who has only ever seen a rush order fit within free capacity should not assume every rush request is this simple. What differs is what is already booked on the line, and which option costs least once the numbers are compared.
| What can differ | The shapes you meet | Why it matters |
|---|---|---|
| A rush order that fits within free capacity | No conflict exists; the rush order is simply booked like any other order. | The simplest case, requiring no weighing between options. |
| A rush order competing with a booked domestic Make to Stock run | A domestic brand's own run, such as Cedar & Co.'s, sits on the same line the rush order needs, and bumping it delays a real commercial commitment, not a contractual one. | The cost of bumping an MTS run is commercial (a domestic brand's own schedule slips), different in kind from bumping an MTO order tied to a buyer's contract. |
| A rush order competing with a booked export Make to Order commitment | An export order such as Order A's own shape has its own contracted ship date; bumping it risks the costs Track 11's Course 1 already covers for a slipped critical path. | The cost of bumping an MTO order is contractual and can include the buyer's own late-shipment costs, not just internal disruption. |
| Covering the shortfall with overtime instead of bumping anything | Nothing already booked is disturbed, but the factory pays its own overtime rate for the extra output. | Overtime avoids disrupting another order's plan, at a direct cost that must still be compared against the alternatives. |
| Delaying the rush order itself instead of bumping booked work | The rush order's own promised date slips instead of any already-booked order's date. | This option's cost falls on the rush order's own buyer, who may have accepted the rush premium precisely to avoid this outcome. |
Line 1 has 1,200 pieces of free capacity in a given week, continuing this course's illustrative figures. A rush order from Northline Apparel requests 1,800 pieces on Line 1 that same week. The same week, Line 1 already carries a fully booked domestic Make to Stock run for Cedar & Co. of 2,400 pieces, so any capacity found for the rush order beyond free capacity can only come from bumping that run, delaying the rush order, or running overtime.
| Fact | What it tells the production manager |
|---|---|
| Line 1's free capacity before the rush request | 1,200 pieces (illustrative) |
| The rush order's requested quantity | 1,800 pieces |
| The shortfall | 600 pieces |
| Cedar & Co.'s booked domestic run, same line and week | 2,400 pieces, the work that would be bumped if chosen |
This example is illustrative, not a claimed fixed academy fact: the rush order's shortfall of 600 pieces, if covered by overtime at Order A's own fixed overtime rate of USD 0.15 per piece, reused illustratively, costs 600 × 0.15 = USD 90.00 directly to the factory. Bumping Cedar & Co.'s 2,400-piece run instead avoids that direct cost but delays the whole domestic run by however long it takes the line to free up that quantity again, a commercial cost to Cedar & Co.'s own schedule rather than a cash cost to the factory.
The shortfall between the rush order's requested quantity and Line 1's free capacity.
The direct cost, in USD, of covering the shortfall with overtime at Order A's own fixed rate, reused illustratively.
A common mistake is treating a rush order as automatically more important than whatever is already booked, bumping a domestic or export order without calculating what that actually costs, when covering the shortfall with overtime, or simply delaying the rush order itself, might have cost less.
A rush order does not automatically win against work already on the line. First work out how many pieces short the line is once the rush order is added to what is already free. Then look at the real ways to close that gap: pay overtime, push back an order already booked, or push back the rush order itself. Work out what each choice actually costs, in money or in a delayed schedule, before deciding. Bumping a booked order just because the new one arrived marked "rush" can cost more than the alternatives once the real numbers are compared.
Karim is asked to fit a rush order from Northline Apparel onto Line 1 this week. He checks free capacity, finds only 1,200 pieces against the rush order's 1,800-piece request, and immediately tells Cedar & Co. their 2,400-piece domestic run will be delayed to make room, without calculating any other option.
Karim's own note to himself, rewritten after Mona's question:
Is it correct for Karim to bump Cedar & Co.'s booked run immediately, without calculating the cost of covering the shortfall with overtime instead?
No. Karim must calculate the shortfall (1,800 − 1,200 = 600 pieces) and compare the real options: covering it with overtime, at about 600 × 0.15 = USD 90.00, against delaying Cedar & Co.'s entire 2,400-piece run.
First, a rush order's urgency does not by itself decide which option costs least, since bumping a booked run and running overtime have very different kinds of cost.
Second, an overtime cost of about USD 90.00 is a small, known cash cost, while delaying 2,400 pieces of Cedar & Co.'s own schedule is a larger commercial disruption with no direct price attached.
Karim should recommend covering the shortfall with overtime rather than bumping Cedar & Co.'s run, once the comparison is actually made, rather than assuming the rush label decides the outcome.
If Karim had bumped Cedar & Co.'s 2,400-piece run without comparing costs, the factory would avoid the USD 90.00 overtime cost but would instead delay a domestic brand's own schedule by the time it takes to reschedule that quantity, risking Cedar & Co.'s confidence in future bookings.
The portion of Cedar & Co.'s booked run that could not be produced this week if it were fully bumped to make room for the rush order, once Line 1's own free capacity is already accounted for.
Beyond the immediate delay, a domestic brand bumped without explanation, when a cheaper overtime option existed, has reason to question whether its own bookings are being treated as less important than an exporter's rush requests, a relationship cost that does not show up in a single week's calculation.
This lesson uses the "Rush vs Booked" sheet of the course's Order booking planner, which takes a line's free capacity, a rush order's requested quantity, and a booked order's quantity that could be bumped, and calculates the shortfall and the overtime cost of covering it automatically. Enter the free capacity, the rush request, and the booked quantity, and let the sheet calculate both figures for comparison. Download link: the course tool, `templates/T11-C05-order-booking-planner.xlsx`.
1. A line has 800 pieces of free capacity. A rush order requests 1,500 pieces the same week. What is the shortfall?
2. A shortfall can be covered by overtime at USD 120, or by delaying a booked Make to Stock run with no cash cost but a real schedule delay. What decides the right choice?
3. Why does bumping a booked export Make to Order commitment carry a different risk than bumping a booked domestic Make to Stock run?
| EN | AR | FR | TR | Meaning |
|---|---|---|---|---|
| Booking sheet | ورقة الحجز | Fiche de réservation | Rezervasyon tablosu | A shared record that lists which lines are committed to which orders, in which weeks, and how much of each line's capacity each commitment uses, so every booking can be checked against the same total. |
| Overbooking | الحجز الزائد | Surréservation | Aşırı rezervasyon | Booking more quantity onto a line or period than its actual daily capacity can produce, so the booked total exceeds what the line can deliver on time without added cost. |
| Make to Order (MTO) | الإنتاج حسب الطلب | Fabrication sur commande (MTO) | Siparişe göre üretim (MTO) | Production starts only after a specific buyer has confirmed a specific order, with quantity, price and delivery date agreed. |
| Make to Stock (MTS) | إنتاج حسب المخزون | Fabrication sur stock | Stoğa üretim | Producing against the seller's own sales forecast, rather than a single confirmed buyer order. |
| Hybrid production model | نموذج إنتاج مختلط | Modèle de production hybride | Hibrit üretim modeli | A company that runs Make to Order and Make to Stock lines side by side, usually split by customer, product line or channel. |
You now know how to weigh a single rush order against work already booked around it. The final lesson brings every method in this course together into one complete booking plan covering a factory's whole portfolio of active orders at once. Back to the course map