Walmart Marketing Agency FAQ: Common Mistakes to Avoid Before You Hire

The FAQ section of the Walmart marketing agency is all about the mistakes that lead to advertising money being blown on campaigns. These include hiring without first doing an audit, taking an Amazon approach to Walmart, accepting generic reporting, ramping up spend before the product listings are even live and judging performance on ROAS alone.
A Walmart agency will only be able to help once they have a good grasp of Walmart Connect, the campaign structure, listing readiness, reporting and marketplace operations. They will need to have a full look at the account prior to any budget being increased and then be able to explain what changes need to be made first.
Use a 5 step review to assess your current or prospective agency: 1) Diagnose the account and listing issues; 2) Structure the campaigns around clear objectives; 3) Optimize bids, targeting and budgets; 4) Report on the results with sales and profit context; and 5) Scale only when the evidence warrants it. At each step you need to have a clear owner and supporting evidence.
Quick Answer: What mistakes should you avoid when hiring a Walmart marketing agency?
The biggest mistakes are: hiring without an account audit, taking an Amazon ad strategy and just copying it over to Walmart, getting unclear reporting, increasing ad spend prior to listings being ready. Also be on the lookout for vague service agreements, lack of Walmart Connect experience and no clear owner of the budget.
A proper agency would explain what the issue is, who's going to fix it and how you're going to measure progress prior to recommending any further spend.
Walmart Advertising Agency vs. Walmart Marketing Agency vs. Full-Service Walmart Agency
As a partner in the Walmart Connect Partner Network could be involved in various facets of your Walmart business the way you phrase things is important.
A typical Walmart advertising agency will be focused on paid media. A Walmart marketing agency can go further and offer a wider range of advertising, listings, reporting and support in terms of marketplace growth.
A full service Walmart agency goes the extra mile by linking the advertising with the operations, the catalog, the inventory and the account management.
Not every brand needs full service support. Every brand should however know precisely what the agency is on board to do before they sign.
If you mainly need paid media support, review what a Walmart ad agency provides. If your challenges also involve catalog management, inventory, and marketplace operations, consider whether a full-service Walmart agency is a better fit.
Common Walmart Agency Mistakes Before You Sign
The big mistake to make prior to agreeing is to pick a partner without knowing what kind of assets they're going to have.
Confusion sets in later due to a lack of clarity around the scope in particular when the results are based on listings, inventory, pricing, budget controls and/or reporting.
You should not take a directory listing as proof that that provider is the right one. Walmart make it very clear that the partners in their Partner Directory are independent third parties and that inclusion in the directory in no way amounts to an endorsement by Walmart.
Before you sign, watch for these red flags:
- There will be no audit of the account prior to the agency making any suggestions as to how the budget should be changed.
- The proposed plan contains no categories or item level context.
- There's no clearly defined owner for Ad Center access, budget approvals and reporting as well as escalation.
- There is no example report which sets out how performance will be assessed.
- There is no plan to launch or build a ramp in the first 30 to 90 days.
- The pricing, the scope and the communication schedule are all described in such a broad, general way.
It's so easy to overlook access rights. A brand should know who can view the campaigns, who can make changes, who can approve budget increases and who can export the reports.
The account could end up being harder to manage if access isn't properly controlled, for instance if performance is slipping or if a member of the team changes role.
Before you sign, confirm who owns the ad account and the campaign data, what level of permission the agency will need and how access will be turned off at the end of the contract. Confirm who has the authority to approve budget increases, who can change the campaigns, who can export reports and who can grant access to new users and integrations.
Before you commit, ask for a sample of the first month's plan. That sample should show what the agency will be looking at, what it will be changing first, what it will be leaving as is until more data is available and how it will be reporting on the early findings.
A plan which doesn't stop to think about the cost of things is a red flag.
The evaluation process should be one of comparing the agency's capabilities rather than simply a search for the best agency. If you do need a wider comparison of agencies then use SalesDuo's guide to the best Walmart advertising agencies rather than just have that as the remit of this FAQ.
Common Walmart Connect Campaign Mistakes After Launch
Errors made in a campaign generally manifest themselves after the campaign has gone live in the form of money having been blown, a very poor return on ad spend, poor learning from search terms or the budget being too thinly spread across a number of objectives.
The problem is generally to do with the campaign structure rather than the size of the bid.
Walmart Connect campaigns have to have a clear structure as each one is going to have a specific purpose. If you have brand defence, category discovery, new item testing and clearance support all in the same campaign then your reporting is going to be a mess and any changes to the campaign are going to be a complete guess.
A good agency should also be up front about the things it won't be changing.
The early campaign data is likely to be very limited. It becomes increasingly difficult to work out what actually worked if you've changed too many levers at once.
The way to go is to record the idea under test, vary one key variable if possible and then link the result to budget, item readiness or targeting quality.
Even more important when the brand is new to Walmart is that this initial phase allows the team to learn, to identify what works and what doesn't and to protect the budget against any generalisations.
Scaling should be done after the account has cleaner signals.
For a closer look at campaign setup, targeting and optimisation, have a look at SalesDuo's guide to Walmart ad campaigns.
Mistakes That Make Ad Performance Look Worse Than It Is
It's not the case that every issue with a Walmart ad is in fact an issue with the ad platform.
Even if a campaign is working well, problems such as poor product pages, price gaps, issues with item eligibility, low availability, negative review signals, or problems with the Buy Box can make the campaign appear inefficient.
Before you agree to spend more, the agency should look at whether the page is ready for retail use. Simply increasing the amount of traffic seldom solves the problem of a page that isn't ready to convert.
A review should include Walmart listing optimization alongside campaign settings.
Stronger product pages make ad performance easier to understand.
Reporting Mistakes That Hide Wasted Ad Spend
Although ROAS is useful it should not be the only measure.
The advice given by Walmart Connect regarding campaign optimisation states that ROAS should be used to guide decisions, although break-even ROAS and total sales are also important when making decisions about growth.
A report that shows only spend, attributed sales, and ROAS may make an account look stronger than it is. It can hide low margins, inventory problems, weak conversion rates, and spending that is not supporting profitable growth.
You should also find out which SKUs are profitable, identify where the budget is being spent too quickly, and determine whether paid media is contributing to overall marketplace results.
Ask the agency which data comes from Walmart Connect and which requires your own sales, inventory, or financial records. Agree on a reporting schedule that fits your budget, campaign activity, and decision-making needs.
Use a simple profit check when a campaign looks strong on the surface:
Contribution profit after ads = net sales − product costs − fulfillment and shipping costs − marketplace fees − returns and discounts − advertising costs − agency, software, and other relevant operating costs.
You shouldn't label a ROAS number as good or bad until you have a clear understanding of margin and the business goal.
For instance, a campaign may appear to be efficient when it achieves a high ROAS on an item that is well known. However,this does not show that the account is growing.
The spend may be protecting sales the brand would have received anyway. Or the item may have lower profit after fulfillment and fees.
A better report explains what the campaign is doing for the item, the category, and the account.
A weak report says performance was good or bad. A useful report explains what changed, why it changed, what decision comes next, and what risk still needs attention.
That is the difference between reporting numbers and managing the business.
Questions to Ask a Walmart Marketing Agency Before Hiring
The right questions turn a sales pitch into a real evaluation.
Ask for proof of process, not just proof of confidence.
A strong answer should be specific.
For example, an agency should not simply say it improves bids. It should explain which data it reviews, what decision that data supports, and when it would hold spend instead of increasing it.
Ask who attends reviews too.
A paid media specialist can explain campaign changes. But marketplace growth often needs input from content, operations, inventory, and finance.
If the agency cannot coordinate those conversations, ad performance may keep getting blamed for problems outside the campaign manager’s control.
Also ask how disagreement is handled.
A good partner should be able to explain tradeoffs in plain language. For example, it should explain when a higher ROAS target may limit sales volume, when a lower target may make sense for launch, or when spend should pause until retail readiness improves.
When Should You Switch Agencies or Get a Diagnostic Audit?
Request a diagnostic audit when you cannot tell whether poor results come from campaign structure, product listings, inventory, budget decisions, or reporting. Ask the current agency to document the causes, corrective actions, owners, and review dates.
Consider switching if the agency repeatedly fails to explain its decisions, misses agreed actions, or cannot address material problems after a reasonable opportunity to improve.
When reviewing a potential replacement, ask for relevant before-and-after evidence. A Walmart advertising case study can show the kind of campaign context to request, but past results do not guarantee similar outcomes.
A better campaign structure is needed in some cases and in others better marketplace execution is needed.
A diagnostic audit should separate those problems before anyone commits more budget.
Choose an Agency That Connects Ads to Walmart Growth
The appropriate Walmart agency ought to carry out campaigns.
It needs to link together campaign structure, listing readiness, budget control, reporting, and operational limits so that your team can make better decisions.
Book Your 1:1 Growth Call with SalesDuo.
Frequently Asked Questions about Walmart Agency
What constitutes a Walmart marketing agency?
A Walmart marketing agency helps brands grow on Walmart by connecting advertising, listing quality, reporting, and marketplace strategy.
While some agencies concentrate primarily on Walmart Connect, others provide assistance with content, retail readiness, and account growth as well.
What is the role of a Walmart advertising agency?
The advertising agency of Walmart looks after paid media on Walmart Connect.
This can include campaign setup, targeting, bids, budgets, reporting, campaign changes, and retail-readiness checks that affect ad results.
What Mistakes Should I Avoid When Hiring a Walmart Ad Agency?
Do not hire anyone without first carrying out an account audit, do not accept a vague scope of work, do not copy an Amazon PPC campaign over to Walmart, do not track only ROAS, do not skip the listing review, and do not increase your spending without having budget controls in place or a clear review schedule.
Is Walmart Connect the Same as Amazon Ads?
No.
Walmart Connect and Amazon Ads both support retail media, but they are different platforms.
They have different shopper behavior, placements, data signals, reporting, and marketplace limits.
A copied Amazon strategy can lead to weak Walmart decisions.
Should an Agency Review Listings Before Increasing Walmart Ad Spend?
Yes.
Weak content, pricing, availability, reviews, eligibility, or offer issues can limit ad performance.
A listing review helps separate campaign problems from marketplace-readiness problems.
Is ROAS Enough to Judge Walmart Ad Performance?
No.
ROAS should be reviewed with ACoS, TACoS when defined, conversion rate, spend pacing, SKU-level profitability, inventory, and total-sales context.
ROAS alone can make an account look healthier than it is.
How Often Should a Walmart Agency Review Campaigns?
There is no one fixed cadence for every account.
Campaign review should depend on data availability, campaign stage, seasonality, budget, item readiness, and the size of the change being considered.
When Should I Switch Walmart Agencies?
Consider a diagnostic audit if your agency cannot explain campaign changes, reporting gaps, or spending decisions. Switching may make sense when important problems continue despite clear expectations and a documented improvement plan.
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.