Supply Chain Optimization Shopify

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 3e6c611584c3 · 19 Oct 2026Report an issue or request a re-scan

• Publishernexscope-ai GitHub organizationOwner of the repository this skill is read from
• Source foldernexscope-ai/eCommerce-Skills/supply-chain-optimization/supply-chain-optimization-shopifyThe exact folder we audited
• LicenceMITAs the repository states it
• Commit pinned for this verdict3e6c611584c3A new audit runs when the source changes
• Repository statusNot archivedLast push 54 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Supply Chain Bottleneck Analyzer for Shopify/DTC stores. Diagnose cash flow, inventory, shipping costs, and customer acquisition efficiency. Includes CAC/LTV analysis, 3PL cost optimization, and ad spend benchmarks. No…

---
name: supply-chain-optimization-shopify
version: 1.0.0
description: "Supply Chain Bottleneck Analyzer for Shopify/DTC stores. Diagnose cash flow, inventory, shipping costs, and customer acquisition efficiency. Includes CAC/LTV analysis, 3PL cost optimization, and ad spend benchmarks. No API key required for basic analysis."
metadata: {"nexscope":{"emoji":"📦","category":"ecommerce"}}
---

# Supply Chain Optimization — Shopify/DTC 📦

Supply chain bottleneck analyzer for Shopify and Direct-to-Consumer stores. Diagnose cash flow, inventory, shipping, and customer acquisition costs.

## Installation

```bash
npx skills add nexscope-ai/eCommerce-Skills --skill supply-chain-optimization-shopify -g
```

## Platform Characteristics

| Feature | Shopify/DTC | vs Amazon |
|---------|-------------|-----------|
| Fulfillment | Self-select (ShipBob/self) | FBA |
| Platform fee | None | 8-15% |
| Payment fee | 2.9% + $0.30 | Included in fee |
| Payment cycle | 2-3 days | 14 days |
| Traffic cost | High (self-built) | Low (platform) |
| Data ownership | Full | Limited |

## Cost Structure (Shopify/DTC)

```
Selling Price $XX
├── Product Cost
├── Inbound Shipping (to warehouse)
├── 3PL Storage Fee (e.g., ShipBob)
├── 3PL Fulfillment Fee
├── Payment Processing (2.9% + $0.30)
├── Shopify Subscription (allocated)
├── Advertising (Meta/Google/TikTok) ← Key Cost
└── Net Profit
```

## Benchmark Configuration

```python
BENCHMARKS = {
    "shopify": {
        "gross_margin": {
            "healthy": 0.60,    # DTC needs high margin for ads
            "warning": 0.50,
            "danger": 0.40
        },
        "shipping_ratio": {
            "healthy": 0.08,    # 3PL fees
            "warning": 0.12,
            "danger": 0.18
        },
        "inventory_days": {
            "healthy": 45,
            "warning": 60,
            "danger": 90
        },
        "cash_cycle": {
            "healthy": 45,      # Fast payment
            "warning": 70,
            "danger": 100
        },
        "net_margin": {
            "healthy": 0.20,
            "warning": 0.12,
            "danger": 0.05
        },
        # DTC-specific metrics
        "cac": {               # Customer Acquisition Cost
            "healthy": 0.25,   # CAC < 25% of price
            "warning": 0.35,
            "danger": 0.50
        },
        "ltv_cac_ratio": {     # LTV/CAC
            "healthy": 3.0,    # LTV > 3x CAC
            "warning": 2.0,
            "danger": 1.0
        },
        "ad_spend_ratio": {    # Ad spend ratio
            "healthy": 0.25,
            "warning": 0.35,
            "danger": 0.45
        }
    }
}
```

## DTC-Specific Costs

### Advertising Costs (Critical!)

```
Meta Ads (Facebook/Instagram): CPM $10-30
Google Ads: CPC $1-5
TikTok Ads: CPM $5-15
Influencer Marketing: Variable

DTC ad spend typically 20-40% of revenue
```

### 3PL Logistics Costs

```
Common 3PL Options:
├── ShipBob
├── Deliverr
├── ShipMonk
└── Red Stag

Fee Structure:
├── Receiving: $2-5/case
├── Storage: $0.5-1/cubic ft/month
├── Pick & Pack: $2-4/order
└── Shipping: By weight/zone
```

### Payment Processing Fees

```
Shopify Payments: 2.9% + $0.30
PayPal: 2.9% + $0.30
Stripe: 2.9% + $0.30

High AOV: Ratio acceptable
Low AOV: Erodes profit
```

## Input Data

```
**Sales (Shopify-specific)**
• Average Selling Price: $___
• Average Order Value (AOV): $___
• Payment Fee: 2.9% + $0.30

**Logistics (3PL)**
• 3PL Fulfillment Fee: $___/order
• 3PL Storage Fee: $___/unit/month
• Receiving Fee: $___/case

**Marketing (Critical!)**
• Ad Spend Ratio: ___%
• Customer Acquisition Cost (CAC): $___
• Customer Lifetime Value (LTV): $___
• Repeat Purchase Rate: ___%
```

## API Integration

### Shopify Admin API

```bash
export SHOPIFY_STORE_URL="xxx.myshopify.com"
export SHOPIFY_ACCESS_TOKEN="xxx"
```

### Available Data

| Data | API |
|------|-----|
| Orders | Orders API |
| Products | Products API |
| Inventory | Inventory API |
| Customers | Customers API |

### 3PL API (e.g., ShipBob)

```bash
export SHIPBOB_API_TOKEN="xxx"
```

## Bottleneck Diagnosis Focus

DTC-specific bottlenecks:

1. **High CAC** → Low ad efficiency, acquisition cost eating profit
2. **LTV/CAC < 3** → Customer value insufficient to support CAC
3. **High 3PL costs** → Poor logistics choice
4. **Low repeat rate** → Reliant on new customers, high cost
5. **Low gross margin** → Cannot support ad spend

## DTC Health Formula

```
Net Profit = Price - Product Cost - Shipping - Payment Fee - Ad Spend - Ops Cost

DTC Golden Ratios:
├── Gross Margin > 60%
├── Ad Spend < 30%
├── Shipping < 15%
├── Net Margin > 15%
└── LTV/CAC > 3
```

## vs Amazon Comparison

| Item | Amazon | Shopify/DTC |
|------|--------|-------------|
| Platform fee | 8-15% | 0% |
| Payment fee | Included | 2.9% + $0.30 |
| Payment cycle | 14 days | 2-3 days |
| Ad spend | 10-20% | 20-40% |
| Traffic | Platform | Self-built |
| Margin need | 40%+ | 60%+ |
| Data | Limited | Full ownership |

---

**Part of [Nexscope AI](https://www.nexscope.ai/?co-from=skill) — AI tools for e-commerce sellers.**

Excerpt, first 5,077 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

npx skills add nexscope-ai/eCommerce-Skills --skill supply-chain-optimization-shopify -g

git clone https://github.com/nexscope-ai/eCommerce-Skills
git -C eCommerce-Skills checkout 3e6c611584c3

Works in

1. 2026-10-19
   ✓SAFE B 89 / 100

   first audit · source 3e6c611584c3

Questions about Supply Chain Optimization Shopify

• github.com/nexscope-ai/eCommerce-Skills/tree/main/supply-chain-o — the audited source at commit 3e6c611584c3 and every finding aboveObserved · 19 Oct 2026

Spotted something wrong? Report a correction · Methodology