Warehouse onboarding checklist for a new 3PL program

Kickoff decks do not receive freight. Item masters do. If you are standing up public warehousing or a dedicated contract block in Greater Cincinnati, treat onboarding as a go-live of data and rules, then freight.

This checklist is what we ask for before the first truck is useful. If you are leaving another provider, pair it with the transition playbook.

1. Item master that a picker can trust

For every SKU:

• Each / case / pallet quantities and a photo of the actual pack
• Catch weight, lot, serial, or expiration if any of those are real
• Hazmat class or "not regulated" — not a blank
• Temperature or moisture notes (cold chain, paper)
• Retailer or plant-specific labels that must exist before the first wave

If the master is "we'll send a spreadsheet later," later is when the first mispick happens.

2. How orders will actually arrive

Name the path: EDI 940, portal, email CSV, API. Name the backup when EDI is down. Name who at your company can approve a same-day add.

Retail programs need the routing guide in the building, not in a shared drive. Retailer compliance is an onboarding item, not a Q3 project.

3. Inbound that matches the dock

• ASN or packing list standard
• Pallet vs. floor-loaded vs. railcar vs. container (destuff, rail)
• Appointment window and what "late" means for detention
• QA hold rules — who releases a lot

Food and chemical programs that skip hold rules will invent them on the floor under pressure.

4. Inventory truth on day one

Schedule an opening count. Agree the unit of measure. Agree what "damage" means. Agree the email that goes out when book and floor disagree by more than a threshold you pick in writing.

Do not start a peak calendar on an uncounted building.

5. People and hours that match the order mix

Share a real week of orders, not an average. Case pick, pallet out, VAS, returns. Peak season assumptions belong in onboarding if the start date is anywhere near your spike.

Name a single operations owner on your side and one on the 3PL side. Two owners is zero owners.

6. Site and mode — pick them on purpose

Cincinnati metro vs. Northern Kentucky is an onboarding decision if inbound mode or tax matters. Do not "start in any building and shuffle later" unless you like recounting.

Tour the door you will actually use: Hebron for CVG-adjacent freight, Florence for rail, Cincinnati for the north-bank network.

7. The first 10 shipments

Pick ten outbound orders that represent the ugly cases — not the clean pallet-out. Watch them. Fix the master. Then open volume.

Onboarding is complete when a stranger on the night shift can receive, putaway, and ship your A SKU without calling you. Until then, you still have a project, not a warehouse program.