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Understanding COGS: How Sentiaify Tracks the Full Cost

Cost of Goods Sold is more complex than just product cost. Learn how Sentiaify accurately tracks and attributes COGS to each product.

By David Kim• Sep 25, 2026

When most Shopify merchants think about costs, they think about what they pay their supplier. But true Cost of Goods Sold (COGS) is much more than that.

Sentiaify helps you understand and track the full cost of every product you sell.

What COGS Actually Includes

True COGS includes every cost directly tied to producing or acquiring the products you sell:

Direct Material Costs

The actual cost of the product from your supplier

Shipping to Your Warehouse

Freight in, customs, duties for international sourcing

Packaging Materials

Boxes, tape, bubble wrap, tissue paper, product inserts

Storage Costs

Warehouse fees, Amazon FBA storage fees, or allocated space costs

Quality Issues

Damaged goods, returns processing, and defective products

Why Simple COGS Is Dangerous

Many merchants use just their supplier cost as COGS. But this ignores significant expenses:

Example: Shopify store selling phone cases

  • Supplier cost per case: $3.50
  • Shipping from supplier (per case): $0.40
  • Packaging (box + insert): $0.75
  • Storage (allocated): $0.25
  • Return rate (5%): $0.25
  • True COGS per case: $5.15

    If you're pricing based on $3.50 COGS with a 50% margin target:

  • Price = $3.50 / 0.5 = $7.00
  • **Actual margin at $7.00: 26.5%**
  • You're getting 26.5% margin instead of your target 50%. That's a massive difference.

    How Sentiaify Handles COGS

    Sentiaify automatically calculates true COGS per product:

    1. Base Product Cost

    Your supplier cost per unit, entered in Settings

    2. Inbound Shipping

    Divided across units based on weight or quantity

    3. Packaging Cost

    Per-order packaging costs attributed to each product

    4. Storage Allocation

    Monthly storage costs distributed across products by volume or units

    5. Return Reserve

    Estimated cost of returns based on your return rate

    Setting Up COGS in Sentiaify

    Step 1: Enter Product Costs

    Go to **Settings > Product Costs** and enter your supplier costs. You can:

  • Enter cost per unit
  • Upload a CSV for bulk entry
  • Connect to your supplier portal (coming soon)
  • Step 2: Configure Fulfillment Costs

    Set your default costs for:

  • Shipping to customer (by weight tier)
  • Packaging materials
  • Fulfillment service fees
  • Step 3: Review Calculated COGS

    Sentiaify shows you the true COGS for each product, broken down by cost type.

    Identifying COGS Issues

    Once set up, Sentiaify helps you spot problems:

    Rising Supplier Costs

    If your supplier raises prices, Sentiaify alerts you and shows the profit impact.

    High Return Rates

    Products with high return rates show inflated COGS. Consider improving quality or descriptions.

    Heavy Products

    Heavy products have higher shipping costs. You might need to adjust pricing.

    Key Takeaways

    1. True COGS includes all costs, not just product cost

    2. Simple COGS calculations can be 30-50% off

    3. Sentiaify automatically calculates true COGS per product

    4. Enter accurate costs for the best profit data

    5. Use COGS data to optimize pricing and product mix

    Get accurate COGS tracking with Sentiaify. Start your free trial today.

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