Why 3PL Selection Matters
A bad 3PL is worse than no 3PL. Late shipments, pick errors, and poor communication damage customer trust faster than almost any other operational failure. The selection process takes a few weeks — the wrong choice can cost you months of customer acquisition to recover.
The 12-Point 3PL Evaluation Checklist
1. Accuracy Rate — Ask for the Number
Any credible 3PL can give you their pick accuracy rate. 99.5%+ is industry standard. 99.9%+ is best-in-class. If they can't produce a number, that's your first red flag.
2. Technology Stack — WMS & Integration
Ask what WMS they run. Ask if it has a customer-facing portal with real-time inventory visibility. Ask specifically about integrations with your platforms (Shopify, Amazon, WooCommerce). A 3PL running spreadsheets is not a 3PL — it's a warehouse.
3. Same-Day Cutoff
What's the latest an order can come in and still ship same day? Industry standard is noon. Good 3PLs offer 2pm or later. Ask what percentage of orders actually ship same day vs next day.
4. Carrier Rate Transparency
Ask for a sample rate card for your typical package profiles. Compare to your current rates. If the 3PL won't show you their rates, negotiate a pass-through model and bring your own carrier account.
5. Returns Handling
Ask exactly what happens when a return arrives. Who inspects it? What grades do they use? How long before it's back in sellable inventory? Returns processing speed directly affects your cash flow.
6. Seasonal Capacity
Ask how they handled Q4 last year. Ask if they use temp workers or dedicated staff. Ask about their surge capacity limit. The answer to "we ran out of space in November" tells you everything.
7. Special Handling Capabilities
Does your product require anything non-standard? Fragile? Temperature-sensitive? Hazmat? Oversized? Confirm capabilities in writing before signing — "yes we can handle that" is not a service level agreement.
8. Contract Terms
Read every line. Key things: minimum commitment length, monthly minimum fees, exit clause notice period (30–90 days is normal), liability for damaged or lost inventory (ask for the coverage limit), and what happens if they fail to meet accuracy SLAs.
9. Onboarding Process
A good 3PL has a documented onboarding process — inventory setup, integration testing, SKU configuration, first inbound receive. If they say "just send your inventory and we'll figure it out," that's a red flag.
10. Reference Clients
Ask for 2–3 reference clients in a similar category (same product type, similar order volume). A 3PL focused on industrial B2B may be excellent but wrong for your subscription beauty brand.
11. Location Relative to Your Customer Base
A 3PL in South Florida ships 1-day to Florida, 2-day to most of the Southeast and Northeast. Check zone distribution for your customer base — the right location can cut average shipping days (and cost) significantly.
12. Financial Stability
Your inventory is sitting in their building. Ask how long they've been in business. Ask about ownership structure. A 3PL that closes takes your inventory with it, operationally if not legally.
Red Flags to Walk Away From
- Can't provide a pick accuracy rate
- No WMS or customer portal
- Won't provide reference clients
- Vague or non-existent SLA in the contract
- Month-one minimum waived with no explanation
- "We're adding your integration next month" (not live yet)
Frequently Asked Questions
Typically 2–4 weeks from contract signing to first shipment. This covers integration setup, SKU configuration in the WMS, first inbound receive, and system testing. Rush onboarding is possible for simple SKU catalogs.
For most DTC brands, a single well-located facility (East Coast covers 65% of US population within 2-day standard shipping) beats a multi-node network until you're shipping 500+ orders/day. Multi-node adds complexity and split-inventory management cost.
At minimum: pick accuracy (99.5%+), same-day ship rate (95%+ of orders placed before cutoff), inventory accuracy (99%+ cycle count), and inbound receive time (within 48 hours of delivery). Include a remedy clause — what happens if they miss the SLA.
Most established 3PLs have a monthly minimum between $500 and $1,500. This usually implies you need at least 100–200 orders per month to hit the minimum organically. Below that, you're effectively paying a premium to offset their setup cost.