3PL for Amazon Aggregators, Miami FL
3PL for Amazon Aggregators: One Warehouse, Many Brands
24-36 hours prep · FastLane 35H: 35 hours end to end or the prep is free · Net-30 terms
Amazon SPN Certified · 5,500 sq ft, 3 dock doors · English, Spanish, Portuguese
PrepVia is a 3PL in Miami for Amazon aggregators and brand portfolios.
Every brand gets its own account in the PrepVia app, with its own Amazon connection, inventory, shipments and invoice, while the floor runs as one operation: one warehouse, one team, one workflow. When a brand joins or leaves the portfolio, PrepVia receives its removal orders, relabels the units to the new FNSKU and sends them back to Amazon. The best month on this dock moved 63,600 units, Fastical volume included; the peak week, 18,080 units in 15 shipments, across every account. This page covers the portfolio workflow; the 3PL for Amazon sellers page covers every segment.
63,600
Units in the best month
measured in the PrepVia app, plus Fastical
18,080
Units in the peak week
15 shipments in 7 days
30.2 h
Median, shipment created to carrier pickup
measured in the PrepVia app
Net-30
Payment terms
30 days after shipment, on approval
Production numbers are measured in the PrepVia app, except the Fastical volume in the best month, reported by the founder. Verified on September 23, 2026. They are republished on the facts page when they change.
What does an aggregator need from a 3PL that a single brand does not?
Six requirements that show up in every aggregator RFP, and how each one is met on the floor.
One Seller Central account per brand
Each acquired brand keeps its own Seller Central account, its own FNSKUs and its own inbound history. The 3PL has to work inside every account without mixing them.
A record per brand
The portfolio team reads receiving, prep and shipment status per brand, not one blended number. Each brand's P&L needs its own line for logistics.
One invoice per brand
Prep and storage are billed per brand account, so the cost of goods for each brand stays clean for the next valuation or exit.
Prep rules per brand
Prep, expiration dates and packaging differ from brand to brand. They have to travel with the brand's listings and shipments, not live in one operator's memory.
Removals and relabeling at every acquisition
An acquired brand often arrives as a removal order from the seller's old account. Units are received, inspected and relabeled to the new FNSKU before they go back to Amazon.
Inventory handed over when a brand is sold
When a brand leaves the portfolio, its inventory is counted, relabeled if the FNSKU changes, and shipped to the address you name.
Brands that ship case packs and pallets have their own page: wholesale FBA prep at volume.
Which services and app screens handle it?
Each service and app screen, and what it covers.
- Removal ordersRemoval shipments from a seller's old account, received in Miami, counted per SKU and inspected.
- FNSKU labelingThe new account's FNSKU on each unit, plus carton and pallet labels, scan-verified.
- Returns processingReturned items graded New/Unused, Used Like New, Partially Damaged or Damaged, then handled the way you choose in the app.
- ReimbursementsUnits Amazon received short of what was sent, kept as a case per product with its evidence, in each brand's account.
- Send to AmazonThe FBA request for one brand's stock, with its prep notes, followed from Working to Closed.
- Shipment trackingExpected against received for each product of each inbound, and the warehouse receipt in PDF once it closes.
Walk us through your brand portfolio
Pricing is quoted per account on a free 15-minute call.
How does PrepVia keep accounts separate on one floor?
The PrepVia app holds one account per brand. Each account has its own Amazon connection, its own inventory, its own shipments and its own invoice. The founder and the team operate every account from the same floor. The workflow does not change from brand to brand.
Cartons are received into the brand's account against the inbound registered in Send to PrepVia. A carton that belongs to one brand cannot be placed in a shipment for another. The app shows only the account's own SKUs when a shipment is built.
Inbounds, receiving counts and FBA requests are stored inside the account. Whoever signs in to a brand's account sees that brand's records, and nothing from the other brands.
| What stays separate | How |
|---|---|
| Amazon connection | One Seller Central connection per PrepVia account, approved from the brand's own Seller Central account. FBA shipments are created through PrepVia's own SP-API integration inside that account. |
| Inventory and SKUs | Received into the brand's account against its own inbound. When a shipment is built, the app shows only that account's SKUs. |
| Inbounds and receiving | Each inbound keeps its carrier, tracking and BOL number, with expected against received per product and the warehouse receipt, inside the account. |
| FBA shipments | Box content goes to Amazon through the API, and each request shows its stage, the FBA shipment ID and the fulfillment center until Amazon closes it. |
| Invoice | One invoice per brand account, on Net-30 terms, for prep and for Storage, which is billed by the day on the space used. Amazon partnered freight is billed by Amazon to the brand's own seller account. |
| Visibility | Whoever signs in to a brand's account sees that brand's inventory, inbounds, FBA requests and invoices, and nothing from the other brands. |
How do removals, returns and relabeling work when you acquire a brand?
The inventory of an acquired brand usually sits in the seller's old account. Four steps move it to yours.
Step 1
Removal order to PrepVia
In the old Seller Central account, create the removal order to the PrepVia warehouse in Miami. The units are counted per SKU when they arrive.
Step 2
Inspection and grade
Each unit is inspected and graded New/Unused, Used Like New, Partially Damaged or Damaged. In Returns & removals you choose: back to inventory, shipped out with your label, or disposed of.
Step 3
FNSKU relabel when the listing changes account
When a listing moves to a new Seller Central account, the FNSKU changes. Old labels are removed or covered and the new FNSKU is scan-verified.
Step 4
Back to Amazon
Sellable units go into an FBA shipment created through the SP-API in the new account, on Amazon's partnered carrier when Amazon offers it for the placement.
Customer returns follow the same inspection step. Removal order fees, timelines and the disposition options are in the Amazon removal orders guide.
See how it works with your products
Pricing is quoted per account on a free 15-minute call.
How does onboarding a new brand work?
No setup fee, and a small first inbound before the volume moves.
Step 1
Connect the account
The brand's Seller Central account is connected to its own PrepVia account, approved in Seller Central. There is no setup fee.
Step 2
Check the prep on file
In Prep requirements, review the prep category Amazon has for each listing and fix what is wrong. The change is saved on the brand's Amazon account.
Step 3
A small first inbound
No minimums: start with a few SKUs of the new brand. Expected against received, the warehouse receipt and the FBA shipment show in that brand's account before its volume moves.
Step 4
Move the volume
Then move the brand's inbound flow. The next brand in the portfolio follows the same four steps.
Moving a portfolio from another 3PL: how to switch 3PL without losing a quarter. What to check before signing: the prep center agreement checklist.
What is measured?
Measured in the PrepVia app and verified on September 23, 2026. Fastical volume as reported by the founder.
| Measure | Verified September 23, 2026 |
|---|---|
| Best month on the dock | 63,600 units |
| Peak week | 18,080 units in 15 shipments |
| Median hours, shipment created to carrier pickup | 30.2 |
| Fastical, one client, in one year | 350,000 units |
| Fastical, in one month | 32,000 units |
Median hours are counted from the moment the shipment is created in the app to the carrier pickup scan. Fastical volume is reported by the founder; the rest is measured in the app.
What does the portfolio team get when a shipment is short?
Five records per brand account, instead of an email chain across brands.
- Receiving count. Cartons and units counted against the packing list and the BOL on the dock. Expected against received units for each product, and a warehouse receipt in PDF once the shipment closes.
- Scan-verified labels. Every FNSKU and box label is scanned to verify it before the carton closes.
- Box content and the FBA request. Box content goes to Amazon through the API, and the request shows its stage, the FBA shipment ID and the fulfillment center until Amazon closes it.
- The short units, as a case. Units Amazon received short of what was sent become a case per product in Reimbursements, with its evidence. The brand files the claim with Amazon and marks it filed.
- Amazon partnered carrier. When Amazon offers it for the placement, freight moves under Amazon's carrier program, and a carton lost after pickup is an Amazon reimbursement case, not a dispute with a trucker.
One 3PL for the Channels You Sell On
Questions an aggregator asks
Can you send SLA documentation, not a slogan?
How is a portfolio priced?
Who is our account manager, and what happens if that person leaves?
Can we export our data without asking support?
Do you use Amazon partnered carriers, and does that matter for reimbursement?
What are the contract terms, and how do we exit with a brand?
Do you run EDI or retailer routing guides?
Send the brand list, the SKU count per brand and the monthly units. We will quote the portfolio.
24-36 hours prep. FastLane 35H: 35 hours end to end, from check-in at PrepVia to Amazon FBA delivered status, or the prep is free. Net-30 terms. One account per brand.
company facts for your RFP · 3PL prep center for Amazon sellers · How the 35-hour guarantee is measured · Who we serve