Merchandising Planning

What is merchandising planning?

Merchandising planning is the discipline of deciding what a brand will buy, in what quantity, at what price and margin, for delivery when, and through which channels — and then holding those decisions against a financial plan as the season sells, reforecasting as actuals replace the forecast. It converts a revenue and margin target into a specific, costed, dated buy, and reconciles that buy against what actually happened once product is on the floor.

The term is used interchangeably with merchandise planning; both name the same full stack. The merchandise financial plan is the first layer inside that stack, not a synonym for it — a team that produces an MFP and nothing else has built a budget, not a plan for what to sell.

Want the whole process, stage by stage? Read the pillar guide on merchandise planning →

What the discipline covers

Merchandising planning is not one artifact. It is a stack of five connected plans, each denominated in a different unit and each constraining the one below it:

1. →Merchandise financial plan — sales, markdown, receipt, and inventory targets in dollars, by department and month
2. →Line plan — how many options exist, in which classes and price bands
3. →Assortment plan — which style-colors go to which channel and door cluster, at what depth
4. →Buy plan and open-to-buy — the purchase orders in units and committed dollars, and the receipt budget they spend against
5. →Allocation plan — which units go to which location, in what sequence

Each layer is written at some level of the merchandise hierarchy, which is what lets a dollar target set at department level resolve into style-colors a buyer can order. Apparel layers SS/FW seasons, size curves, and the style-color matrix onto the sequence; footwear works in size runs, widths, and prebooks; home and furniture in configurations, finishes, and container quantities against a model year. The five layers hold across all of them; the vocabulary at each layer does not.

Why merchandising planning matters

• →Capital is committed before the season exists. The buy is placed well ahead of the sell-through that would justify it, so it gets sized against a plan or against optimism.
• →Margin is set by weighting, not by discounting. Over-buying a soft class and under-buying a proven one leaves markdown exposure on one side and lost sales on the other; pricing recovers neither in-season.
• →Channels do not want the same assortment. DTC, wholesale, and retail carry different depths and cadences, so one undifferentiated buy either starves a channel or duplicates inventory across them.

In practice

A brand planning Fall/Winter sets sales, margin, and inventory targets by department and month, which fixes the receipt budget. The line plan decides how many options each class carries and at what price architecture. The assortment plan chooses style-colors and depth by channel, the buy plan turns that into purchase orders with sizes and delivery dates, and allocation decides where units land. What matters is the constraint between steps: each layer owes a number to the next, so when the assortment grows at line review, the receipt budget moves or something else comes out.

Merchandising planning vs adjacent terms

Each term answers one question, and confusing them is how two plans end up disagreeing about the same season.

• →Merchandising planning — what do we buy, for how much, delivered when, for which channel?
• →Merchandise financial plan — what are the sales, margin, and inventory targets?
• →Open-to-buy — how much receipt budget is left to spend?
• →Line planning — how many options, at what price architecture?
• →Assortment planning — which styles and colorways, at what depth, by channel?
• →Buy planning — what goes on the purchase order, in what sizes, by when?

The financial plan sets the ceiling and the assortment plan spends against it, and the two are only trustworthy if they read from the same numbers.

Common mistakes

• →Planning each layer in its own file. An assortment change does not move the open-to-buy position until someone carries it across by hand.
• →Skipping straight to styles. Style decisions made before the financial envelope exists produce an assortment that reads well in review and does not fit the receipt budget.
• →Treating the plan as pre-season only. The financial plan, the buy, and allocation keep running all season; stopping at commit gives up the half where the correction happens.

For the layer-by-layer process, owners, and worked examples, see What Is Merchandise Planning; for how the product hierarchy changes across ten verticals, see Merchandise Hierarchy by Vertical.