Prep Center and 3PL for Amazon Agencies, Miami FL
Prep Center for Amazon Agencies Managing Multiple Clients
24-36 hours prep · FastLane 35H: 35 hours end to end or the prep is free · Net-30 terms
Amazon SPN Certified · one account per client · Monday to Saturday, 9 AM to 5 PM ET
PrepVia is a prep center and 3PL in Miami for Amazon agencies and account managers who run several client accounts.
Each client gets its own account in the PrepVia app, with its own Amazon connection, inventory, shipments and invoice. What arrived, product by product, and the stage of every FBA shipment sit in that account, so nobody emails the warehouse to ask. The best month on this dock moved 63,600 units, Fastical volume included; the peak week, 18,080 units in 15 shipments, across every client account. If your clients ship pallets, containers or case packs, the wholesale FBA prep at volume page covers that workflow, and 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 agency need from a prep center that a seller does not?
A seller has one account and one question at a time. An agency has thirty of each.
One account per client
Each client is its own account in the PrepVia app, with its own inventory, shipments and invoices. Nothing is pooled across clients.
The same view for agency and client
The agency and the client look at the same account, so nobody builds a status report by hand. Each client account has its own login.
Status without asking
Expected against received per product, the warehouse receipt in PDF and the stage of each FBA request sit in the client's account. The account manager reads them instead of emailing for them.
An invoice per client
Each client is invoiced on its own account. The agency does not split one bill across clients at month end.
One contact for every account
One team answers for every account, by phone and email. The person on the line is the founder's team, not a ticket queue.
One workflow for all of them
Client three and client thirty go through the same receiving, prep, shipment creation and freight steps. A new client learns nothing new; the agency onboards it once.
Which app screens does the agency use for each client?
The same screens in every client account, and what each one shows.
- Send to PrepViaRegister each client's inbound, or send the client's supplier a link that works without a login for 90 days.
- Shipment trackingExpected against received units for each product, and a warehouse receipt in PDF once the shipment closes.
- Send to AmazonAsk PrepVia to ship the client's stock to FBA and follow each request from Working to Closed, with the FBA shipment ID.
- AI document readingThe AI reads the supplier's invoice or packing slip into a list of SKUs and quantities that you check before saving.
- RestockPer SKU, what to send to FBA and what to reorder, from the client's sales and stock at Amazon, on the way and at PrepVia.
- SalesBest sellers, trends, returns and a monthly forecast from the client's Amazon orders.
- Profit / P&LProfit per product from the client's Amazon orders, fees and costs.
- ReimbursementsUnits Amazon received short of what was sent, kept as a case per product with its evidence.
- Prep requirementsThe prep Amazon has on file for each of the client's listings, changed from the app and saved on the client's Amazon account.
Walk us through your client accounts
Pricing is quoted per account on a free 15-minute call.
How does PrepVia keep client accounts separate?
The question an agency asks is not the price of a label. It is whether client A can ever see, pay for, or ship inside client B. The answer is structural, not a policy: each client is its own account.
- One account per client in the PrepVia app. Inventory, inbounds, FBA requests and invoices live under that account and nowhere else.
- The status the agency sees is the status the client sees. Both look at the same account. There is no second version of the truth.
- Two clients never share a shipment. Each Amazon inbound plan is created from one client account through the SP-API, under that client's own Amazon seller account.
- Billing is per client account. On Net-30 terms. Prep and storage are invoiced to the client's account; Amazon partnered freight is billed by Amazon to the client's own seller account.
What the account looks like from the inside: the PrepVia app.
How does the agency get status without asking?
Four checkpoints per shipment, each one written to the client's account by the team on the dock or by the Amazon API.
Step 1
Receiving
Cartons and units are counted against the packing list on the dock. Expected against received per product shows in the client's account, with a warehouse receipt in PDF once the shipment closes.
Step 2
Prep
Check-in to closed carton inside 24-36 hours on eligible workflows. Each FBA request shows its stage: Working, Ready to ship, Shipped, In transit, Receiving or Closed.
Step 3
To Amazon
PrepVia creates the shipment through the SP-API, picks the placement and books the freight, on Amazon's partnered carrier when Amazon offers it. The request shows the FBA shipment ID and the fulfillment center.
Step 4
Amazon receiving status
Receiving status comes from Amazon through the API, with the units in the pipeline and the units received at Amazon. Nobody opens Seller Central to learn that a shipment closed.
The software an agency should expect from a prep center in 2026: prep center software and tools.
See how it works with your products
Pricing is quoted per account on a free 15-minute call.
What does the referral or agency program look like?
An agency that refers a business new to PrepVia earns 15% of the referred client's prep revenue, for the first 3 months after onboarding. The commission counts prep services only and is paid within 7 days of the client's payment. The program terms are on the Refer & Earn page, and the sign-up is in the PrepVia app.
Agency & Referral Opportunities
- 15% of the referred client's prep revenue, for the first 3 months after onboarding
- Up to $10,000 per referred client
- Paid within 7 days of the client's payment
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 run from shipment creation in the app to the carrier pickup scan. Shipments the client sends from their own address are excluded. Company facts for an RFP are on the facts page.
Questions an agency asks before the first client
How is a new client set up?
Can each client start with a small first shipment?
Who answers our questions?
Which languages does the team work in?
Is there a contract, for the agency or for each client?
How is each client priced?
Does PrepVia pay agencies for referrals?
Send one client profile: the SKU count, the monthly units and the channels. We will quote that account.
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, per client account. One team on the phone.
Company facts · Pricing and plans · FBA prep for ecommerce brands · Who we serve