Plan For Every SKU, A Simple Inventory Playbook For Ecommerce Brands

Author: Jason Martin
Reviewed by: Chief Operations Officer, Product Fulfillment Solutions
Last updated: December 18, 2025


Executive TLDR

Running out of your hero products is painful. Drowning in slow movers is just as painful, it just shows up on a different report.

A “Plan for Every Part” approach, or in ecommerce terms a “Plan for Every SKU,” is a simple idea. For every item you sell, you document how it should be sourced, stored, handled, reordered, and shipped. One clean source of truth instead of a dozen spreadsheets and tribal knowledge.

For brands shipping small, light, non fragile products like supplements, vitamins, cosmetics, wellness items, snacks, and subscription kits, a practical plan for every SKU can help you:

  • Cut stockouts on your most important products
  • Reduce excess inventory that ties up cash and shelf space
  • Make better decisions about what to keep, what to promote, and what to retire
  • Align your team and your 3PL around the same rules for every SKU

In this guide, you will follow a fictional brand, Clearpath Naturals, as they go from “we think we know what is going on” to a calmer, data driven inventory program with
Product Fulfillment Solutions as their central fulfillment partner in Cincinnati, Ohio.

If you already suspect that some SKUs are running your life instead of the other way around, you can start a conversation here,
Contact Product Fulfillment Solutions.


Table of Contents


When inventory rules live in too many places

Clearpath Naturals was growing. Their sleep and stress support products had loyal customers, their email list was active, and their marketing team was proud of the story they were telling.

The inventory story was less inspiring.

  • Reorder rules lived in separate spreadsheets that only a few people really understood
  • Lead times were based on “what usually happens,” not documented commitments
  • Safety stock was a guess, often driven by whoever had the strongest opinion that week
  • The warehouse team knew how to handle each product, but most of it lived in their heads

On a quiet week, the system limped along. During launches, holidays, or when a supplier slipped even a little, the cracks widened fast.

  • Hero SKUs stocked out during campaigns that were planned months in advance
  • Slow moving items gathered dust while cash sat trapped on shelves
  • Customer service tried to explain why “in stock” products suddenly went to backorder

Everyone was working hard. The problem was not effort. The problem was the lack of a single, clear plan for each SKU that both the brand and the 3PL could follow.


What “Plan for Every SKU” really means

Plan for Every Part (PFEP) started in manufacturing. The idea applies cleanly to ecommerce when you think in terms of a “Plan for Every SKU.”

At a basic level, it is one central place where you store the important details for each item you sell, including:

  • What it is and how it is used in your catalog
  • Where it comes from and how long it usually takes to arrive
  • How much you want on hand and when you reorder
  • How it should be stored, handled, packed, and shipped

Instead of scattered notes, separate sheets, and “ask Jamie” as the default answer, you build a shared database that becomes the truth for operations.

For ecommerce brands, a Plan for Every SKU should help you:

  • Know which products deserve tighter planning because they drive most of your revenue and loyalty
  • Understand which SKUs can be trimmed, bundled differently, or retired
  • Line up purchasing, marketing, and fulfillment around the same assumptions

Story, How Clearpath Naturals got control of its SKUs

Clearpath Naturals did not set out to create a messy inventory program. It just happened quietly over a few years of growth.

The “before” picture, a growing brand with fragile inventory rules

When we first sat down with their team, the pain points were familiar:

  • The same small group of people were always pulled into last minute stockout conversations
  • Marketing and operations often found out about each other’s plans late in the game
  • Some SKUs felt “important,” but no one had formally categorized which ones truly drove the business

Most of the time, they pulled it off. Orders shipped. Customers were happy. But it took more energy than it should have, and they knew it.

Bringing a 3PL into the conversation early

Clearpath did not just want more racking or another warehouse hire. They wanted a more disciplined way to run inventory without losing the personality of their brand.

That search led them to
Product Fulfillment Solutions and our
Cincinnati, Ohio fulfillment center.

Instead of starting with a rate card, we started with a simple question:

“If we looked at each SKU one by one, what would we need to know so there are fewer surprises next quarter”

Building their Plan for Every SKU

We sat down together and built a shared, living document. For each SKU, we captured:

  • Basic identifiers, SKU, description, units per case, units per inner pack
  • Physical details, dimensions, weight, storage requirements, lot or expiration needs
  • Sourcing details, supplier, typical lead time, minimum order quantities
  • Demand profile, sales velocity, seasonality, and role in the catalog (hero, support, or experimental)
  • Reorder logic, target days on hand, safety stock, reorder points, preferred order increments
  • Handling and packing rules, special inserts, kitting steps, or packaging do’s and do nots

It took effort, but it was not complicated. Within a few weeks, Clearpath had a usable Plan for Every SKU that both their internal team and the PFS team could reference.

That single shared plan became the anchor for better decisions across the board.


Inventory problems a “Plan for Every SKU” solves

Most inventory headaches trace back to the same root causes. A Plan for Every SKU goes after those roots directly.

Overstocking and stockouts at the same time

It is completely possible to have shelves full of product and still stock out of the items people actually want.

With a clear plan for each SKU, you can:

  • Separate high velocity items from slow movers and plan them differently
  • Give your hero SKUs stronger safety stock and closer monitoring
  • Reduce orders on products that rarely move so you can free up cash

High fulfillment costs because inventory is in the wrong place

If you store too much of the wrong SKUs in the wrong locations, you pay for it in freight and handling.

A Plan for Every SKU helps you decide:

  • Which SKUs must live in your central hub in Cincinnati for fast reach to most customers
  • Which items can be positioned differently or carried in lower quantities
  • How to use sales velocity by region to guide inventory placement and slotting

SKU creep and unmanageable complexity

New flavors, limited runs, holiday bundles, all great for revenue and marketing. Dangerous if you never clean them up.

With a plan for each SKU, you can clearly see:

  • Which items drive repeat orders and should stay central to the line
  • Which SKUs create disproportionate operational complexity for minimal upside
  • Where you can simplify packaging, kitting, or storage without hurting the customer

How to build a plan for every SKU in your business

You do not need a giant software project to start. A well structured spreadsheet or database, shared between your team and your 3PL, is enough to change the way you operate.

Step 1, Gather and clean your SKU data

Start with what you already have. Pull data from your ecommerce platform, ERP, and warehouse systems into one sheet.

  • SKU and variant codes
  • Plain language description
  • Dimensions and weights in the units you actually use operationally
  • Case pack and inner pack details
  • Current storage locations and any special handling notes

Then, fill in the gaps. Talk with your suppliers, your 3PL, and your internal teams to add missing details.

Step 2, Analyze demand patterns and sales velocity

Look at how each SKU behaves over time, not just last month.

  • Average weekly or monthly units sold
  • Seasonal patterns and known spikes, for example holidays, launches, or influencer promotions
  • Which products commonly appear together in orders

The goal is to understand which SKUs deserve tighter planning because they move the needle, and which ones are nice to have but not critical.

Step 3, Define replenishment rules for each SKU

For each SKU, decide how you want replenishment to work in practice.

  • Target days on hand for normal demand
  • Safety stock level to cover uncertainty
  • Reorder point that triggers a new purchase order
  • Preferred order quantity that balances freight and flexibility

Document these rules right in your Plan for Every SKU sheet, so purchasing, finance, and your 3PL are all looking at the same playbook.

Step 4, Assign handling and fulfillment instructions

Small details in the warehouse have a big impact on unboxing and cost.

  • Storage guidelines, bin or shelf locations, temperature considerations if relevant
  • Packing preferences, mailer versus carton, inserts, and branding elements
  • Kitting rules, which SKUs are combined into sets or bundles and how

These instructions should be clear enough that a new associate on a busy Monday can get it right without guessing.

Step 5, Put your plan to work with your 3PL

A Plan for Every SKU only creates value if it is used daily.

  • Share the plan with your team at Product Fulfillment Solutions and keep it in sync with our warehouse management system
  • Set a regular cadence to review SKUs that have changed behavior
  • Update rules together based on what you see in real demand and real operations
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How “Plan for Every SKU” supports better fulfillment

Once your Plan for Every SKU is in place, fulfillment stops being a guessing game and starts behaving more like a system.

Faster, more accurate receiving and put away

When inbound product arrives at
our Cincinnati fulfillment center, a clear plan for each SKU means:

  • Receiving teams know exactly how many units should be in each case or pallet
  • Put away tasks send product to the right locations based on velocity and handling needs
  • Lot numbers or expirations are captured correctly when needed

This reduces “mystery pallets” and gets inventory ready to sell faster.

Better pick and pack efficiency

When SKUs are slotted and documented correctly, pick paths shorten and errors drop.

  • Fast movers live in easy reach, slow movers live where they cause less congestion
  • Pack stations follow clear instructions for packaging, inserts, and kitting
  • Scan based checks confirm that the right items are in the right carton or mailer

Cleaner inventory visibility and reporting

A Plan for Every SKU feeds cleaner data into your systems.

  • On hand, allocated, and available quantities reflect reality more accurately
  • Replenishment reports line up with what is actually happening in the warehouse
  • Decision makers can trust the numbers without calling three people to confirm

A 90 day roadmap to cleaner inventory and better planning

You do not need to build a perfect plan for every SKU overnight. A focused 90 day effort can change how it feels to run your business.

Days 1 to 30, Get the truth on the table

  • Export your full SKU list with basic attributes and sales data
  • Identify your top 20 to 50 SKUs by revenue and units sold
  • Document current lead times, even if they are rough, and where the data lives today

Days 31 to 60, Build and test your first Plan for Every SKU

  • Create a simple template for your SKU plan and fill it out for your priority items
  • Share the draft with your 3PL partner at Product Fulfillment Solutions and adjust together
  • Start using the plan to drive purchasing and inbound scheduling decisions

Days 61 to 90, Expand and refine

  • Roll the template out to the next tier of SKUs
  • Track key metrics like stockouts, excess inventory, and rush purchase orders
  • Update rules based on what you learn from real world performance

By the end of the quarter, your inventory will still not be “perfect.” It will be more predictable, more transparent, and far less dependent on memory and ad hoc decisions.


How Product Fulfillment Solutions helps you run the plan

Product Fulfillment Solutions is a Cincinnati based 3PL built for brands that ship small, light, non fragile products such as supplements, vitamins, cosmetics, wellness items, snacks, and subscription boxes.

We help turn your Plan for Every SKU into daily execution by:

  • Running WMS driven, scan based workflows that respect your SKU level rules
  • Storing products in a central hub that reaches most US customers in one to three business days by ground
  • Collaborating on inbound schedules, safety stock, and replenishment plans for your most important SKUs
  • Providing clear reporting on inventory positions, velocity, and performance so you can keep improving the plan

You do not need to carry the whole planning burden alone. With the right partner and a clear plan for each SKU, inventory can shift from constant stress to a quiet strength behind your brand.

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FAQs about Plan for Every SKU and inventory planning

What is the difference between Plan for Every Part and Plan for Every SKU

Plan for Every Part comes from manufacturing, where each part in a product has a documented plan. Plan for Every SKU applies the same idea to ecommerce. For every SKU you sell, you capture how it should be sourced, stored, handled, replenished, and shipped so the whole team can follow the same rules.

Do small brands really need a Plan for Every SKU

Yes, especially if you are growing or rely on replenishment. Even a small catalog can get messy quickly when rules live in people’s heads. A simple plan for each SKU helps prevent stockouts, excess inventory, and confusion as you add new team members or move into a 3PL.

Where should we store our Plan for Every SKU

Many brands start with a well structured spreadsheet that both internal teams and Product Fulfillment Solutions can access. As you mature, you can move more of that logic into your systems, but the important part is having one shared source of truth instead of separate versions scattered across tools.

How often should we update our SKU plans

Most brands review their most important SKUs monthly or quarterly, especially after major seasons or campaigns. Slower moving items can be reviewed less often. The key is to adjust rules when lead times, demand patterns, or product roles change, not just once a year.

How does Product Fulfillment Solutions support Plan for Every SKU

Product Fulfillment Solutions supports Plan for Every SKU by helping you build and maintain the SKU level data that operations depend on, then running that plan inside our Cincinnati fulfillment center. We use scan based workflows, clear slotting, and practical reporting so your SKU plans stay connected to what actually happens on the floor.

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