52.5 lb
overweight warning threshold
Cartons approaching Amazon penalty territory are flagged before a label is generated.
Pricing
Three plans. Operations for FBA teams.
Core starts at $79/month. Operations is built for serious FBA teams, and every plan includes active reimbursement filing with success fees starting at 20% on Core.
Plans
Choose the operating tier that fits your FBA volume.
Core
For growing FBA sellers tightening inbound control.
$79.00/ mo
- 1 Amazon seller account
- 1 marketplace
- 1 ship-from location
- 2 users or warehouse workers
- Up to 2,000 inbound units per month
Operations
For serious operators with warehouse teams.
$149.00/ mo
- 2 Amazon seller accounts
- 4 marketplaces
- 4 ship-from locations
- 10 users or warehouse workers
- Up to 10,000 inbound units per month
Scale
For high-volume FBA teams scaling workflows.
$299.00/ mo
- 4 Amazon seller accounts
- 16 marketplaces
- 16 ship-from locations
- 50 users or warehouse workers
- Up to 50,000 inbound units per month
Trial clarity
Try the workflow before the subscription decision.
The demo uses seeded FBA data. The trial is for sellers who are ready to connect Amazon and evaluate the workflow on their own catalog, warehouse, and settlement data.
1 screen
for packing and margin review
Warehouse actions and post-shipment reconciliation share the same shipment record.
48 hr
sandbox demo window
Evaluate the operating flow with seeded FBA data before connecting Amazon.
FAQ
Common questions
- Yes. The sandbox demo runs without a credit card; the live trial requires Amazon SP-API access and is free for 14 days.
- Plans include published limits for Amazon accounts, ship-from locations, users, and inbound volume. Upgrade when your team or warehouse footprint grows.
- US, EU (DE, FR, IT, ES, UK, NL, SE, PL, BE, IE), JP, BR — anything Amazon SP-API exposes.
- MarginLock is FBA-focused. FBM is on the roadmap; it isn't in v1.
- You can export everything (settlements, shipments, products, reconciliations) as CSV. We delete your data within 30 days of cancellation.
Run MarginLock against your account today.
Free trial. Sandbox demo available — no credit card.