Amazon FBA Management Services: What an FBA Management Agency Handles
A service which provides management of FBA (Fulfillment by Amazon) is able to assist brands with planning, tracking, and managing the various tasks connected with FBA.
Amazon stores products that are eligible for the service and takes responsibility for picking, packing, shipping, and a large part of the customer service and returns process. A management agency for FBA looks after the seller's portion of these operations.
The agency is not in charge of running Amazon’s warehouses, nor does it accept responsibility for the legal obligations of your brand.
The kind of services you get is determined by the contract you have. A few agencies provide only assistance with inventory planning and shipping, while others take on account problems, fee reviews, catalog updates, or advertising work as well.
What, in fact, does an FBA management agency manage?
An agency that provides FBA management carries out the planning, making of decisions, and the subsequent follow-ups concerning FBA. It does not carry out the actual fulfilment work which Amazon performs.
A clear contract ought to specify every task, identify who is responsible, and indicate which decisions require your approval.
When reviewing proposals, separate four levels of responsibility: monitoring a task, recommending action, coordinating the people involved, and executing an approved change. A provider that reports inventory issues may offer a different level of support from one that creates shipment plans or handles support-case follow-up.
If you're new to FBA, you should begin with our article explaining how FBA works. The article in question is concerned with selecting an external management partner rather than with setting up FBA.
As stated in the Amazon FBA overview, Amazon is able to store the inventory, pick and pack orders that are eligible, ship the products, and look after the associated customer service and returns.
Depending on what access it has and the terms of its contract, an external agency might use your account data to plan inventory, arrange shipments, and deal with any problems.
For example, suppose that a product is selling faster than anticipated.
Amazon has the means to ship items that are already part of its fulfilment network; however, it is not able to approve a new order from a factory or determine how much money your brand should spend on production.
A company will be able to detect the shortage of stock, recommend both when and how much to reorder, and arrange the following actions.
The brand continues to approve the purchase and remains responsible for the business risk.
FBA Tasks: Amazon vs. Seller vs. Agency
Unless responsibilities are clearly assigned, some of them will overlap.
When you are comparing FBA management proposals, use the table.
A task listed in the section titled “Agency may handle” should only be considered as included if the agency actually offers it and your brand provides the necessary approval and access.
Important US FBA preparation update: Amazon discontinued its FBA prep and item-labeling services for new US shipments effective January 1, 2026. Sellers must arrange the required preparation and labeling before sending inventory to Amazon, either themselves or through a qualified service provider.
Shipments created before January 1, 2026 were covered by Amazon's transition provisions. An FBA management agency may coordinate preparation, but the agreement should identify who physically performs the work and checks compliance.
Review Amazon's FBA Prep Service guidance before preparing shipments.
This buying checklist does not mean that all agencies will provide all services.
The contract must also make clear who is responsible when Amazon alters a process or turns down a request.
Services by Operating Stage
Effective management of FBA involves carrying out a standard procedure.
The agency begins by looking over your account, assists you in planning when to restock, keeps an eye on the shipments and inventory, and then deals with any problems that arise.
Request that the providers demonstrate the reports or systems that they use at each stage.
Onboarding and Audit
The first thing to do should be to look over account access, past performance, and the current problems.
An initial audit may cover:
- Sales and demand for each SKU
- Available inventory and incoming shipments
- How long products have been stored
- Differences between shipped and received units
- Stranded inventory
- Possible fee problems
- Open Amazon support cases
The agency and your team must agree on the date from which performance tracking is to begin, who the main contacts are, the reporting format to be used, and the approval rules.
You should not use your main Amazon login if the required tasks can be carried out via approved user permissions.
Make a record of who requests the changes, who prepares them, who approves them, and who carries them out.
Forecasting and Replenishment Cadence
The agency has the ability to look at recent sales, the stock currently on hand, the inventory that has arrived, the lead times of suppliers, and the promotions that are planned.
It is then able to suggest the appropriate times to reorder products and when the shipments should arrive.
These forecasts are merely estimates and not assurances of demand.
Your brand still decides how much inventory to buy.
Set regular meetings to review products at risk of running out, suggested actions, responsible people, and deadlines.
Even a good forecast can fail if no one is responsible for approving the next purchase.
Inbound Shipments and Inventory Health
Before the products get to Amazon, there has to be a person in charge of handling the preparation, attaching the labels, dealing with the carton details, arranging the transport, and keeping records of the shipment.
Once inventory has been shipped, the agency can track shipment progress, compare shipped quantities with Amazon's recorded received quantities, and investigate discrepancies using the available shipment records.
The agency can review available shipment and receiving information in Seller Central, but it cannot control Amazon's processing schedule or guarantee when every unit will become available for sale.
If you want to know more about inventory planning, see our guide on FBA inventory management.
If you are comparing management services, pay attention to the company that checks stock levels, the times at which alerts are sent, and the way in which unresolved problems are reported to the correct person.
Fees, Discrepancies, and Exceptions
A review of the fees should state which charges the agency examines, how frequently it examines them, and which reports it uses.
It must also specify which person approves changes to the packaging or inventory plans.
They are able to identify possible reasons for the extra costs, but they cannot alter Amazon’s fee rules or ensure that savings will be achieved.
If you want to know about practical methods of controlling costs, see our guide on reducing FBA fees.
Make sure that the agency's service fees are kept apart from Amazon's storage and fulfillment charges.
The rule also holds for FBA reimbursement claims.
An agency can review the records and prepare the claims, but Amazon decides whether they are valid and how much money, if any, to pay.
Customer returns, shipment discrepancies, and FBA reimbursement claims are separate operational issues. A returned product does not automatically qualify for reimbursement. Confirm the applicable claim category, Amazon's current eligibility rules, available records, and any reimbursement already issued before submitting a claim.
Customer-Facing Listings and Advertising Coordination
The choice made regarding inventory often has an impact on product listings and advertising.
For instance, a product which is out of stock can still attract traffic as a result of advertising campaigns. Furthermore, a listing problem may prevent the available stock from selling properly.
Find out whether the FBA team will merely report these issues or also get involved directly with the catalog and advertising teams.
Make it clear who is in charge of the next step if another agency or your own team is looking after those areas.
It is better to have a shared task tracker than for the two teams to assume that the other one will deal with the problem.
A Practical 30/60/90-Day Handoff
The schedule given below is an example of the way the first 90 days could be arranged.
The exact timing will vary depending on your account, the lead times of your supplier, the open cases with Amazon, and the services included in the contract.
What is generally not included in an FBA management contract?
The management of FBA does not automatically cover warehousing, freight, manufacturing, legal advice, or financial services.
The proposal must clearly state which tasks are being excluded and also name any specialists or external companies that are involved.
- The provision of physical 3PL services such as receiving, kitting, labeling, storing products, arranging freight, or preparing inventory may involve the need for separate providers.
- With regard to manufacturing and purchasing, an agency might propose reorder quantities, but it must not use your brand’s money unless it has been given the necessary authority.
- An agency may coordinate with an external warehouse or 3PL without operating that facility or insuring the inventory stored there. Confirm each provider's responsibilities, applicable insurance arrangements, and liability for lost or damaged products in the relevant agreements
- As for account ownership and guarantees, you should maintain control of your Amazon account and no provider should promise any guaranteed fee reductions, reimbursements, or a complete avoidance of stockouts.
- As for legal and tax advice, it should not be assumed that management of the marketplace takes the place of advice from qualified legal or tax experts.
Also find out who is responsible for paying the freight bills, the removal fees, the preparation costs, the software subscriptions, and the charges for third-party services.
The idea of "all-inclusive management" amounts to very little unless there is a clear list specifying what is and what is not included.
How to Evaluate an FBA Management Provider
An agency proposal ought to make clear who is responsible for what and the way in which problems are dealt with.
When you are on the phone with your provider, pose these questions and ask for written responses before agreeing.
- Can you share a sample SKU-level inventory and operations report, including the forecasting assumptions used?
- Who physically prepares and labels inventory: our team, your agency, or a separate 3PL?
- Who creates shipment plans, tracks deliveries and receiving, and investigates quantity discrepancies?
- What are your response and escalation procedures for urgent inventory or account issues?
- Which FBA fees, discrepancies, and reimbursement opportunities do you review, and what is excluded?
- What Seller Central permissions do you need, and how will you handle access and data when the engagement ends?
- How often will we receive reports covering inventory availability, inbound shipments, stockout risks, aging inventory, and open issues?
- Which responsibilities depend on suppliers, freight providers, or 3PLs, and how will you track delays outside your control?
Red Flags in a Proposal
One should be careful if an agency promises to produce results without explaining the means by which it will do so.
A clear answer should include the task, responsible person, data used, and limits of what the agency can control.
Ask for a short handover document listing current risks, open cases, reporting responsibilities, and how account access will be removed.
This is especially useful when changing agencies.
What an Amazon FBA Management Service Costs
There is no single monthly fee that applies to every FBA management agency.
Pricing depends on the services included, number of SKUs, shipment volume, account complexity, and reporting needs.
Compare the work covered by each proposal instead of looking only at the advertised price.
Compare the total cost of each proposal. Include the management fee, onboarding or project charges, applicable Amazon FBA fees, inbound freight, preparation and labeling, 3PL services, software, and any separately billed reporting or reimbursement work.
Identify which costs are included in the agency's fee, charged by Amazon, or paid directly to another provider. Do not count the same expense twice.
Amazon fees are separate from agency management fees.
Amazon’s guide to FBA costs explains that sellers may pay fulfillment, storage, and other charges depending on their products and services.
Ask for a complete fee schedule showing third-party costs and whether the agency charges extra for reimbursement recovery.
Before comparing quotes, request the same service list from each provider.
It should cover setup, forecasting, shipment planning, monitoring, fee checks, support cases, reports, meetings, and termination support.
A cheaper agency may leave out the tasks that take up most of your team’s time.
When Full-Service Amazon Management Makes More Sense
Standalone FBA management may be enough when your brand already has reliable people managing listings, advertising, pricing, and account health.
Full-service management may be a better choice when inventory decisions affect these areas and no one is responsible for coordinating them.
For example, a promotion may increase demand before your next scheduled restock.
If the advertising team increases spending without updating the inventory forecast, the operations team may plan using outdated numbers.
A shared plan helps teams make better decisions. It cannot prevent supplier delays or guarantee inventory availability.
If your brand needs coordinated support across FBA operations, catalog management, advertising, and account health, compare the responsibilities included in a full-service Amazon agency engagement with those of a dedicated FBA management provider.
Confirm which activities SalesDuo would manage, coordinate, monitor, or leave with your internal team in the current proposal. Do not assume every service is included without reviewing the agreed scope.
Choose the Scope Before You Choose the Provider
Start with the responsibility table and ask each agency to clearly identify what it will do, coordinate, report, or leave to your team.
Compare account access, approvals, urgent issue handling, fees, and the first 90 days using the same approach.
If your team needs support coordinating inventory, shipments, account issues and related Amazon workstreams, use your responsibility checklist to discuss which activities SalesDuo could support under an agreed service scope.
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Frequently Asked Questions about Amazon FBA Management Services
What Is the Difference Between FBA and FBM?
With Fulfillment by Amazon (FBA), Amazon stores eligible inventory and handles fulfillment for orders covered by the program.
With Fulfilled by Merchant (FBM), the seller arranges product storage, packing, shipping, and related customer support.
A brand can choose different fulfillment methods for different products.
How Is an FBA Management Agency Different From a 3PL?
A third-party logistics provider (3PL) handles physical work such as storing, preparing, and shipping goods.
An FBA management agency usually focuses on planning, monitoring, and coordinating tasks for the seller.
Some companies offer both. Check the contract to confirm who physically handles the products.
Can FBA Management Prevent Stockouts?
No agency can guarantee that stockouts will never happen.
A management service can help spot inventory risks by tracking stock levels, supplier lead times, promotions, and incoming shipment delays.
Actual results still depend on demand forecasts, supplier performance, purchase approvals, and Amazon’s receiving schedule.
Who Pays Amazon FBA Fees When an Agency Manages the Account?
The seller is normally responsible for Amazon fees charged to its selling account and FBA program.
The agency’s management fee is separate.
Check whether freight, preparation, storage, software, and reimbursement-related charges are included or billed separately.
About the Author
Meet Aryan Suyal, an SEO Content Writer Intern at SalesDuo who excels at turning patterns into precise, on-point content. He brings sharp insights and analytical thinking, along with a builder's instinct for creating systems that help ideas work smarter. Outside of work, you'll find him getting lost in books, tinkering with and building AI systems, or losing hours to a good documentary.