Apparel Planning
Terminology Defined.
Every term in the apparel merchandising planning workflow — from OTB and assortment planning to size curves, sell-through rate, and markdown optimization — defined for practitioners.
Browse all terms
Aging inventory refers to product that has exceeded its planned selling window without selling through, losing value as it ages past peak demand and requiring markdown, liquidation, or disposal to clear.
Assortment planning is the merchandising process by which apparel brands determine the breadth and depth of products to carry in a given season, channel, or location — defining which styles, colors, and sizes to offer and at what quantities.
Average unit retail (AUR), also called average selling price (ASP), is the average revenue generated per unit sold — a critical metric for assortment architecture, pricing strategy, and financial planning in apparel merchandising.
Allocation optimization is the process of distributing inventory across channels, stores, or wholesale accounts in a way that maximizes full-price sell-through and minimizes markdown exposure — using historical sell-through data, demand signals, and door-level performance.
Buy planning is the apparel merchandising process of converting assortment decisions into structured purchase commitments — specifying quantities by style, color, size, vendor, and channel, reconciled against the open-to-buy budget.
Breadth and depth are the two primary dimensions of an apparel assortment — breadth referring to the number of distinct styles offered, depth to the number of units per style. The tradeoff between them is one of the central decisions in assortment planning.
Buy execution is the operational stage in apparel planning where finalized buy plan decisions are converted into purchase orders submitted to vendors — bridging the planning workflow and production.
Carry-forward is the practice of holding unsold inventory from one selling season to re-offer in a future season, rather than clearing it through deep markdowns or liquidation channels.
Category planning is the process of building financial and assortment strategies at the department or category level — such as tops, bottoms, dresses, or outerwear — to ensure each product group meets its revenue, margin, and inventory targets within the broader merchandise plan.
Channel planning is the process of tailoring product assortments, inventory levels, pricing strategies, and delivery cadences for each distinct selling channel — including DTC e-commerce, wholesale accounts, and owned retail stores — within a unified merchandise plan.
Connected planning is a merchandising planning approach where financial plans, assortment decisions, buy plans, and allocation share a single data model — so changes in one planning stage automatically cascade to all dependent stages in real time.
Color depth in apparel planning refers to the number of units bought in a specific colorway of a style — a critical buy decision that determines whether each color option has adequate inventory to sell through at full price or will residualize in under-demanded colors.
Demand sensing is the use of real-time and near-real-time data signals — including POS transactions, weather, social trends, and web traffic — to adjust short-term demand forecasts beyond what traditional statistical models capture.
Decision intelligence is the application of AI and advanced analytics to surface actionable planning recommendations at the point of decision — from reorder signals and markdown timing to assortment edits — enabling merchandising teams to act on data rather than hunt for it.
Demand forecasting is the process of predicting future consumer demand at the style, category, or channel level using historical sales data, trend analysis, and market signals to inform buying and inventory decisions.
Demand planning is the cross-functional discipline that integrates demand forecasting with inventory strategy, assortment decisions, and supply coordination to ensure the right product is available in the right quantity at the right time.
DTC planning is the process of planning assortment, inventory, pricing, and fulfillment specifically for direct-to-consumer channels — including owned ecommerce, brand stores, and pop-ups — where the brand controls the full customer experience and margin stack.
Fill rate is the percentage of wholesale customer orders shipped complete and on time, measuring a brand's ability to fulfill demand without backorders, substitutions, or delays.
A floor set is a scheduled refresh of a retail selling floor or wholesale account's product assortment — typically tied to a seasonal transition — that requires apparel vendors to deliver inventory within a defined window before the set date.
Integrated Business Planning (IBP) is a cross-functional planning framework that connects financial targets, merchandise plans, and operational execution into a single aligned process — replacing siloed planning across finance, merchandising, and supply chain teams.
Inventory distortion is the gap between recorded inventory and actual inventory — encompassing both overstock and out-of-stock conditions — costing global retailers an estimated $1.77 trillion annually.
Inventory productivity measures how effectively a brand's inventory investment generates revenue and profit — typically tracked through inventory turns, sell-through rate, GMROI, and weeks of supply — serving as the core diagnostic for merchandising execution quality.
Inventory turns — also called inventory turnover — is the number of times a brand's average inventory is sold and replaced over a given period. Higher turns indicate more efficient use of working capital and lower markdown risk in apparel merchandising.
Initial Markup (IMU) is the percentage difference between the cost of goods and the original retail selling price — representing the planned gross margin before any markdowns, shrinkage, or selling costs are applied.
Lead time is the total elapsed time from purchase order placement to receipt of finished goods at the distribution center. In apparel, lead times typically range from 90 to 180 days and are the primary constraint on buying calendar flexibility.
Line planning is the pre-assortment stage in apparel product development where brands determine the structure of a seasonal collection — how many styles, in what categories, at what price tiers, and with what attribute composition — before individual products are selected.
Margin optimization is the process of maximizing gross margin across a product assortment through coordinated pricing, markdown, assortment composition, and channel allocation decisions — balancing sell-through velocity against margin preservation throughout the product lifecycle.
Markdown rate is the percentage reduction from original retail price applied to clear slow-moving inventory — one of the most significant margin levers in apparel merchandising, directly connecting assortment planning accuracy to realized profitability.
A merchandising operating system is an integrated software platform that connects OTB planning, assortment planning, buy planning, allocation, and analytics into a single workflow — replacing disconnected spreadsheets and point solutions with a unified system of record for merchandising decisions.
Merchandising planning is the end-to-end discipline of determining what products to buy, in what quantities, at what price, when to deliver them, and through which channels — forming the strategic backbone of every apparel brand's go-to-market execution.
Multi-channel inventory is the practice of managing a shared inventory pool across DTC, wholesale, and retail channels with allocation rules, reservation logic, and rebalancing mechanisms that maximize total sell-through while respecting channel-specific commitments.
Maintained Markup (MMU) is the actual gross margin realized on sold merchandise after markdowns, employee discounts, and shrinkage are applied — representing the true margin outcome of a season compared to the Initial Markup target.
Markdown optimization is the practice of timing, sizing, and targeting price reductions to maximize sell-through on residual inventory while minimizing the total margin impact — by reducing the depth, duration, and necessity of markdowns through better pre-season planning.
A Merchandise Financial Plan (MFP) is the top-level financial framework that governs an apparel brand's seasonal inventory investment — establishing sales targets, margin goals, and receipt budgets before any assortment or buy decisions are made.
Omnichannel retail planning is the practice of planning inventory, assortment, pricing, and promotions across all selling channels — wholesale, DTC, retail stores, and marketplace — as a unified operation with shared data and coordinated execution.
Open-to-Buy (OTB) is the dollar or unit budget available to a buying team for purchasing new inventory in a given period, calculated from planned sales, inventory targets, and existing purchase commitments.
Option count is the total number of distinct style-color-size combinations in an assortment, serving as a key measure of assortment complexity and a primary driver of inventory investment and operational workload.
Pre-pack vs singles refers to the two primary packaging configurations used in wholesale apparel distribution — pre-assembled size assortments versus individually picked units — each with distinct cost, speed, and flexibility tradeoffs.
Planning workflow automation is the use of system-driven processes to handle repetitive planning tasks — data consolidation, reforecasting, buy plan generation, and variance reporting — so merchandising teams focus on strategic decisions rather than manual data wrangling.
Price elasticity measures how sensitive consumer demand is to changes in price. In apparel, understanding elasticity by category, brand tier, and season determines optimal markdown depth and promotional strategy.
Pricing intelligence is the use of competitive market data, demand elasticity analysis, and margin modeling to inform initial pricing, promotional strategy, and markdown cadence across an apparel assortment.
Product mix optimization is the analytical process of balancing product types, price points, and categories within an assortment to maximize gross margin, sell-through, and return on inventory investment.
Promotional planning is the process of scheduling, structuring, and coordinating promotional events, markdowns, and offers across the seasonal calendar to drive sell-through without eroding brand positioning or cannibalizing full-price demand.
Replenishment is the process of restocking inventory at the store, warehouse, or channel level based on sell-through velocity, safety stock thresholds, and reorder points to maintain product availability without overstocking.
Retail analytics is the practice of using sell-through, margin, inventory, and customer data to surface actionable insights that drive merchandising decisions — from assortment composition and buy depth to allocation, pricing, and markdown timing.
A retail data model is the structured schema that defines how products, transactions, inventory, and planning hierarchies are organized in a planning system — establishing the relationships between financial targets, assortment decisions, and operational execution.
A receipt plan is the period-by-period schedule of planned inventory receipts for an apparel brand — defining when merchandise is expected to arrive, at what cost value, and against which OTB budget — derived from the Merchandise Financial Plan.
Safety stock is the buffer inventory held above expected demand to protect against variability in demand, supply lead times, or both — preventing stockouts that result in lost sales and damaged customer relationships.
Speed-to-market is the total elapsed time from initial design concept to retail availability, measuring how quickly an apparel brand can move a product from idea through production to the selling floor.
Store clustering is the practice of grouping retail locations by shared demand patterns, demographics, or performance profiles to optimize assortment allocation and inventory distribution across a store fleet.
Seasonal planning is the process of organizing merchandise financial plans, assortments, buys, and delivery schedules around defined seasonal windows — typically Spring/Summer and Fall/Winter — that structure the entire apparel go-to-market calendar.
Sell-through rate is the percentage of available inventory sold during a defined period at full price or within a planned selling window, calculated as units sold divided by units received.
A size curve is the planned distribution of units across sizes for a given style or category, expressed as a percentage of total units. It determines how many units of each size are purchased and allocated, based on historical sell-through data and expected channel demand.
SKU productivity measures the revenue, units, or margin generated per active SKU in an assortment — a critical diagnostic for determining whether a brand's product offering is working hard enough or carrying unproductive complexity.
Spreadsheet-based planning is the practice of running merchandising planning workflows — OTB, assortment, buy plans, and allocation — in disconnected Excel or Google Sheets files. It remains the dominant planning model for mid-market apparel brands despite well-documented risks to accuracy, speed, and margin.
A style-color matrix is the grid that maps every style in an assortment against its planned colorways, defining the total product offering and serving as the structural foundation for line planning and buy decisions.
Supply planning is the process of coordinating vendor capacity, production schedules, and logistics timelines to ensure that planned buy quantities are delivered on time and in full to meet demand commitments.
SKU rationalization is the process of systematically evaluating an apparel brand's assortment and removing or reducing styles that do not meet defined performance thresholds — based on sell-through rate, margin contribution, velocity, and size residual patterns.
Stock-to-Sales Ratio (SSR) is a retail planning metric that compares the amount of inventory on hand at the beginning of a period to the net sales made during that period — used to evaluate inventory adequacy and identify over- or under-stocked positions.
Wholesale planning is the merchandising discipline of planning assortment, pricing, minimum order quantities, delivery windows, and account-level allocations for wholesale accounts — balancing account-specific requirements against total brand inventory and margin objectives.
Weeks of Supply (WOS) is a replenishment planning metric that measures how many weeks the current inventory on hand will last at the current rate of sale — used in apparel planning to identify replenishment needs, reallocation opportunities, and overstock risk.
See how connected planning works in practice.
Book a live demo and walk through OTB, assortment, and buy planning in RetailNorthstar — connected from day one.