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Mastering Classifications

Judi Zietsman avatar
Written by Judi Zietsman
Updated over a month ago

Quick Summary: Refine stocked item classification using the dual-ranking ABC (value) and HML (velocity) matrix to prioritize inventory investment.

Why Further Classification Matters

While primary stocking indicators define an item's overall replenishment strategy, the 9-block classification matrix provides a more granular view for stocked items. This dual-ranking system helps you understand an item's criticality based on its value and unit movement, enabling more precise inventory planning.


The 9-Block Matrix Explained

Simply classifying an item as Stocked is often too broad for effective planning. To make your planning more efficient and effective, the app refines stocked items using a dual-ranking system based on:

  • πŸ’° Value contribution (A, B, C)

  • πŸ“¦ Unit movement (H, M, L)

You can view this matrix by navigating to Classification in the left pane and selecting the Matrix tab.


ABC - Value Classification

This ranks items based on their forecasted or historic sales value.

  • A-items: Typically contribute to the top 80% of total sales value (e.g., high-value electronics). These are often less than 20% of total items.

  • B-items: Represent the next 16% of sales value.

  • C-items: Represent the final 4% of sales value (e.g., small, inexpensive accessories).


HML - Unit Movement Classification

This ranks items by the forecasted or historic number of units sold.

  • H (High): Typically contribute to the top 80% of unit sales (e.g., fast-moving consumables).

  • M (Medium): Represent the next 16% of unit sales.

  • L (Low): Represent the final 4% of unit sales (e.g., niche or slow-moving items).


Examples of Combined Classifications

Combining these two rankings places every stocked item into one of nine buckets, allowing for highly targeted policies.

Code

Example

Description

AH (A-High)

πŸ“± Mobile phones

High value, fast movers

AL (A-Low)

πŸ₯£ Crystal salad bowl

High value, slow movers

CH (C-High)

πŸ₯€ Drinking straws

Low value, fast movers

CL (C-Low)

✍️ Brown ink pen

Low value, slow movers


Reading the Classification Matrix

The matrix provides a high-level summary of each bucket, showing:

  • Unique item count

  • Total stock value

  • Calculated model value

  • Average future monthly demand (or historic sales, depending on setup)

  • Achieved fill percentage

  • Target fill percentage

This insight is crucial for guiding your strategic thought process when setting your policy defaults.

➜ For more on this topic, read: Strategic Thought Process for Policy Defaults


Classification Percentage Split Explained


How To: Set Classification Parameters


⚠️ Watchouts

  • Empty categories: Depending on your inventory profile, not every category in the 9-block matrix will contain items.


πŸ’‘ Tips

  • Forecast vs. History: The ABC/HML classification can be based on historical sales or future Forecasts. Using forecasts is often more effective for managing growing, declining, or seasonal products. If you use History, the "Demand" tab on the matrix will appear as "C.O.S." (Cost of Sales) instead.


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