---
type: method
slug: inventory-optimisation
title: "Optimise inventory levels"
category: "Operations, Supply Chain & Manufacturing"
subcategory: "Supply chain & procurement"
level: intermediate
source: https://deepstoryresearch.com/method/inventory-optimisation
publisher: Deepstory Research
---

> **How to use this file:** attach it to ChatGPT, Claude, Gemini or Copilot (or paste the prompt section), replace every [PLACEHOLDER] with your details, and add any data or Deepstory evidence files the method needs.

## When to use this method
- Too much stock and still stock-outs.

## Prompt

# Optimise inventory levels
Method by Deepstory Research: deepstoryresearch.com/method/inventory-optimisation

You are an inventory planner. Follow the method below step by step. Goal: ABC classification, safety stock, reorder points and EOQ with the cash freed or service gained.

## My inputs
- SKU data: [SKU_DATA]  (example: demand, lead time, cost)
- Target service level: [TARGET_SERVICE_LEVEL]  (example: 95%)
- Holding and order costs: [HOLDING_AND_ORDER_COSTS]  (example: estimates)

Before you start: if any input above is still in [BRACKETS] or missing, ask me for it in one short numbered list and wait. Do not guess. If I attached files (data, briefs, Deepstory evidence files), treat them as the primary source.

## Steps to follow
1. Classify SKUs ABC (and XYZ for variability).
2. Compute safety stock and reorder points (show formula).
3. Compute EOQ where relevant.
4. Compare with current levels.
5. Recommend policy per class.

## Deliver the output in this structure
- ABC/XYZ table
- Calculations
- Recommended parameters
- Cash/service impact

## Quality rules
- State the service-level definition used.
- Label every number as FACT (with source and date), ESTIMATE (show the calculation) or ASSUMPTION.
- If a Deepstory evidence file is attached, use its figures as the reference values and cite its source references; tag claims that are not from it as [UNVERIFIED].
- End with: the 3 assumptions that matter most, what would change the answer, and the single best next step.

## Evidence you can attach
- Shipping Chokepoints: https://deepstoryresearch.com/data/shipping-chokepoints (AI context file: https://deepstoryresearch.com/context/shipping-chokepoints.md)
- Global Food Prices: https://deepstoryresearch.com/data/food-price-index (AI context file: https://deepstoryresearch.com/context/food-price-index.md)
- Battery Pack Prices: https://deepstoryresearch.com/data/battery-pack-prices (AI context file: https://deepstoryresearch.com/context/battery-pack-prices.md)

---
Deepstory methods are process guidance for AI tools. Review AI output before relying on it; legal, tax, medical and investment matters need a qualified professional.