supply-chain-optimization-shopify
# 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/) — AI tools for e-commerce sellers.**
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