The field guides · 04
Plan a 3PL switch around live orders
Updated
In this guide
Plan a warehouse move around the orders that still need to ship. Reconcile inventory, test the receiving operation and assign responsibility at each handoff.
A limited test and a phased move can reduce disruption, but no plan guarantees zero downtime. Build the schedule around notice requirements and demonstrated readiness.
When is switching worth it?
Separate recurring operating failures from a problem the current provider can resolve. Document what happened and the effect on your business. Ask for a corrective plan with an owner and a review date.
If performance does not improve, compare the cost and risk of staying with a planned move. Persistent count discrepancies deserve particular attention because reliable inventory records are essential during a transfer.
An urgent service or safety issue may require a different response. Get the appropriate operational or professional advice rather than following a generic schedule.
What should you secure before giving notice?
Collect the records the receiving provider needs, and check that your team can use the exports. Agree on access and handover responsibilities before they become urgent.
Review notice and termination requirements with appropriate advice. Confirm inventory-removal costs and access to records, including responsibility for remaining orders. This guide is an operating checklist, not legal advice.
- Catalog: current SKUs and barcodes, with dimensions and weights. Attach handling instructions.
- Inventory: reconciled quantities, lots and any stock awaiting a decision.
- Orders: open orders and fulfillment history. Include outstanding returns.
- Connections: sales channels and integrations, with a named owner for each.
- Records: agreements, invoices, performance reports and unresolved discrepancies.
How do you avoid repeating the same mistake?
Turn the reasons for leaving into testable requirements. If counts were unreliable, examine the next provider's receiving and reconciliation process. If billing was unclear, price a real month and review a sample invoice.
Check the actual facility and request relevant references. Ask how the provider handles your difficult cases, not only the standard order.
Resolve handover and exit terms in the new agreement. Carry forward what you learned instead of relying on a better first impression.
How does the parallel run work?
Agree on a limited initial workload where inventory and systems permit it. Define what must pass before expanding and who can stop the routing change.
If a parallel run isn't practical, document another continuity plan with both operations. A phased move is a method to evaluate, not a promise that fits every shipment.
- Choose stock for the test based on demand and the handling you need to prove.
- Reconcile receipt at the new facility before routing orders against that stock.
- Test representative orders, packaging and returns.
- Define how available stock is counted across both locations so it is not sold twice.
- Assign orders already in flight and returns arriving at the old address.
- Move the remaining workload only after the agreed checks pass and unresolved exceptions have owners.
How do you exit the old provider cleanly?
Follow the agreed notice process and put the handover schedule in writing. Identify who is responsible for inventory at each point in transit and receipt.
Reconcile the final count and invoice with the departing provider. Confirm how outstanding returns and claims will be handled after regular fulfillment ends.
Update return addresses, suppliers and order-routing connections. Disconnect old access when the agreed handover no longer needs it, using your normal security process.
What do you watch after cutover?
Compare the first operating reports and invoices with the agreement. Investigate count differences and late orders while the trail is fresh. Keep a named owner and next action for each exception.
Set a regular review with the new provider. Maintain the catalog and connection records you assembled for the move so future changes do not depend on memory.
Common questions
- How long does switching 3PL providers take?
- Set the timeline from notice requirements and receiving capacity. Account for record preparation and tested integrations. Agree on readiness checks and contingency time with both providers.
- Can I switch 3PLs without stopping orders?
- A parallel run may keep orders moving while part of the inventory transfers. Test the routing and inventory controls first. Plan for receiving or carrier delays rather than promising uninterrupted service.
- When should I tell my current 3PL that I am leaving?
- Use the agreement's notice requirements and obtain advice where needed. Coordinate that timeline with records, inventory and the receiving provider's readiness. Confirm remaining responsibilities in writing.
- What does switching 3PLs cost?
- Ask for a transition estimate covering inventory removal and freight, setup at the new provider and any overlapping service costs. Confirm which charges are fixed and which depend on actual work.
- Will my customers notice the switch?
- They may notice packaging, delivery timing or a new return address. Test those details and prepare customer communication for any service change. Assign responsibility for orders placed before cutover.
- Should I keep inventory at both 3PLs permanently?
- Evaluate that as a separate operating decision. Compare service improvements with the extra inventory, integrations and fees. A temporary split does not need to become a permanent arrangement.
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