
Both novice Amazon sellers and experienced FBA practitioners are likely to encounter various errors during their selling experiences. While some mistakes may be minor inconveniences, others can result in significant financial losses, potentially jeopardizing the entire business, an outcome that no seller desires.
In this discussion, we will examine ten of the most costly errors made by Amazon sellers and guide how to prevent them.
Amazon Mistake #1 – Violating the Rules
When embarking on your journey as an Amazon seller, it is crucial to familiarize yourself with the platform’s regulations. Any infringement of these rules or violation of Amazon’s Terms of Service can lead to the suspension of your account.
Among the various pitfalls discussed in this article, account suspension stands out as the most financially detrimental mistake a new seller can encounter, especially if you have already sent inventory to one of Amazon’s fulfillment centers.
It is important to recognize that dishonest practices will ultimately be detected.
As a nearly trillion-dollar enterprise, Amazon employs hundreds of thousands of individuals and utilizes some of the most sophisticated technology available. The company possesses the necessary resources to monitor seller activities effectively and will not hesitate to impose penalties on sellers, even if it results in minor financial losses.
Therefore, as you begin your selling venture on Amazon, ensure that you are well-versed in their regulations. If you have any uncertainties, take the time to conduct thorough research. We provide comprehensive information regarding Amazon’s Terms of Service to help safeguard you against these potential risks.

Financial Implications: Should your Amazon account be suspended, you will first lose access to any inventory stored in Amazon’s warehouses, which could result in significant financial losses. Additionally, you would be barred from selling on the platform again, potentially forfeiting a six-figure income or more.
Amazon Mistake #2 – Overlooking the Competition
When conducting product research, it is essential to assess the number of competitors within your market segment. Pay particular attention to the volume of reviews as well. If the top ten sellers in your product search results each possess over 100 reviews, it indicates a highly competitive product landscape.
Utilizing tools such as Jungle Scout’s Keyword Scout can also aid in forecasting the costs associated with Amazon PPC. A higher pay-per-click rate for a keyword linked to a product typically signifies increased competition within that niche.
Potential Financial Implications
The inability to sell a product will inevitably lead to a loss of at least the initial capital invested, which often ranges from two to three thousand dollars. Furthermore, if you attempt to gain visibility for your product through high-cost advertising, you may incur additional losses amounting to hundreds of dollars.
Amazon Mistake #3 – Neglecting Supplier Verification
It would be ideal to assert that all global suppliers are reliable; however, my experience has shown issues with three out of four suppliers I have engaged with. Many other sellers have reported similar challenges.
Consequently, it is prudent to collaborate with suppliers that have established trust within the business community. The most effective method to ascertain a supplier’s reliability is to review their performance history using Jungle Scout’s Supplier Database.
To enhance your research, you may also input the name of a competitor or the ASIN of one of their products into the database to identify their suppliers.
Potential Financial Implications
Neglecting to thoroughly vet a supplier could result in significant financial repercussions, including hundreds of dollars lost to overcharges and opportunity costs. In the worst-case scenario, if a supplier misappropriates your deposit, it could lead to losses amounting to thousands of dollars.
Amazon Mistake #4 – Failing to Enhance Existing Offerings
In the early days of my selling experience, it was possible to launch a product on Amazon that closely mirrored those already available on the search results page. However, this approach has become increasingly ineffective.
Amazon’s algorithm is adept at identifying imitation products, and consumers have become more discerning. When faced with two similar items, customers are likely to select the one with a greater number of reviews. If your product is introduced after a competitor’s, it is improbable that it will be the preferred choice.
Consequently, as you embark on product or niche research, it is essential to analyze the feedback provided in product reviews. Identify the issues that customers are experiencing. Determine what aspects of the existing product are lacking and seek opportunities for enhancement.
For instance, if users express frustration over the difficulty of cleaning a popular garlic press on Amazon, consider incorporating a removable, washable silicone cover or providing a cleaning brush.
Risk of Financial Loss
A product that fails to gain traction on Amazon could result in a total loss of your investment, particularly if it does not achieve superior reviews and ratings compared to the competing products you sought to replicate.
Amazon Mistake #5 – Excessive Stock Ordering
Many sellers believe that maintaining a surplus of stock is necessary to accommodate the potential high demand for their products, as no one wishes to deplete their inventory. Additionally, it is common practice to order larger quantities to reduce the cost per unit.
However, overstocking can lead to significant financial losses for sellers. Since Amazon FBA sellers incur storage fees for their products, having inventory that remains unsold translates to expenses rather than revenue.
Moreover, disposing of surplus stock can be both costly and complicated. In the event of liquidation, likely, sellers will not recover their initial investment. Alternatively, if they opt to return the inventory, they must pay Amazon $0.50 for each unit, which can accumulate quickly.
So, how can one determine the appropriate quantity of stock to order?
While sales projections can provide a preliminary understanding of expected performance post-launch, the most reliable measure of a product’s success will always be its actual sales figures, even if they are modest.
Therefore, once you have a clearer picture of your anticipated sales, utilizing a tool such as Jungle Scout’s Inventory Manager can be beneficial. This tool will assist in formulating an order strategy to prevent the pitfalls of overstocking or stock shortages.
Ultimately, I would prefer to have slightly insufficient inventory that leads to temporary shortages (which can create a sense of urgency) rather than over-ordering and facing a lack of demand for the surplus stock.
Potential Financial Implications
Even if all excess stock is eventually sold, the cumulative storage fees imposed by Amazon can be substantial. Long-term storage fees are particularly steep; after a product has been stored at Amazon for over a year, sellers incur a charge of $6.90 per cubic foot each month, with a minimum fee of $0.15 per unit.
Additionally, the capital tied up in surplus inventory could have been invested in developing new, more lucrative product opportunities.
Amazon Mistake #6 – Neglecting Amazon PPC
Amazon Pay-Per-Click (PPC) serves as Amazon’s integrated advertising platform. While there is a cost involved, this investment is minimal compared to the potential benefits of increased visibility for your product. Greater visibility translates to more opportunities for sales.
Moreover, by creating a sponsored product listing that results in a sale, you signal to Amazon’s algorithm that your product is desirable to customers. This can enhance your product’s organic ranking.
If budget constraints are a concern, consider utilizing tools such as Jungle Scout’s Sales Analytics to monitor your PPC expenditures. Additionally, generate comprehensive advertising reports for your product. It is advisable to focus on high-converting keywords while eliminating those that incur high costs.
Potential Financial Implications
Consider the following scenario: you have a product with a 10% conversion rate, meaning that one in every ten visitors to your product page makes a purchase. If you are receiving only 1,000 impressions monthly, this results in approximately 100 sales, with a gross profit margin of 25%.
While this profit is yours after covering direct costs, what if you allocated 10% of those profits towards advertising?
Envision increasing your product’s visibility to 10,000 impressions each month. This could yield 1,000 sales at a 15% gross profit margin, compared to just 100 sales at a 25% margin. The difference in profits is substantial, highlighting the opportunity cost of not investing in advertising.

Amazon Mistake #7 – Absence of a Review Strategy
Reviews play a vital role in achieving success on Amazon. A recent study by G2 and Heinz found that 92% of consumers who see a positive review go on to make a purchase.
Because of this, it’s important to gather positive reviews quickly after launch. This requires a clear and well-planned review strategy. Your approach must also follow Amazon’s guidelines. Using unethical or “black hat” methods can lead to serious financial risks.
For more details on building a strong review strategy, read our article on How to Obtain Reviews on Amazon.
Potential Financial Implications
Consider a product with positive reviews and a 20% conversion rate. Based on the G2 study, a product with no reviews may convert at just 1.6%.
With 1,000 impressions, the difference is significant. One product could generate 200 sales, while the other may achieve only 16.
Amazon Mistake #8 – Utilizing Inaccurate Sales Data
Amazon does not disclose its sales data, as such transparency would lead to uniformity in product offerings. Consequently, sellers utilizing Amazon FBA depend on sales estimation tools, such as Jungle Scout, to forecast product demand.
However, relying on sales estimates that are significantly inaccurate can lead to substantial financial losses, including diminished capital and profits.
Recently, we conducted an experiment analyzing actual sales data from sellers to evaluate the accuracy of our estimates in comparison to those of our competitors. The findings were definitive: none of our competitors matched Jungle Scout’s precision in sales estimation.
Potential Financial Implications
Consider the impact of using a tool with 83% accuracy versus one with 67%. At first glance, the difference may seem small.
Now, imagine evaluating a product with the 67% accurate tool. It shows an average of 400 monthly sales. Meanwhile, a competitor uses the 83% tool, which estimates 300 units.
Both of you decide to sell the same product on Amazon. You order 1,200 units based on the higher estimate. Your competitor takes a safer approach and orders 1,000 units.
After one month, actual sales reach only 250 units. By the fourth month, your competitor has sold out. You are still left with 200 units in Amazon’s warehouse.
In the end, the difference in accuracy leads to higher costs for you. These include storage fees, extra ad spend, and other expenses.
Amazon Mistake #9 – Taking Shortcuts
Recently, a new seller shared their frustration about being unable to list a product on Amazon. The issue was the rejection of their GTINs (barcodes).
After looking into it, I found that the seller had purchased barcodes from a third-party source. They did not use Amazon’s recommended provider, GS1. As expected, they chose the cheaper option to save money.
While those barcodes only cost around $100, the decision proved costly. In the end, the entire investment was wasted.
This situation highlights a common mistake among new sellers. Many try to take shortcuts early on. Examples include weak branding, poor listing optimization, rushed product research, and limited supplier vetting. All of these are covered in this article.
It’s important to understand that Amazon FBA is not a quick way to get rich. It is a real business that requires proper investment. The more shortcuts you take, the higher the risk to your success.
Potential Financial Consequences
The UPC issue mentioned earlier cost the seller $100 for unusable barcodes. Additionally, they now face the necessity of purchasing GS1 barcodes, incurring an extra $250, bringing their total expenditure to $350.
By initially opting for GS1, they could have saved 60% on their barcode costs. These expenses from taking shortcuts can accumulate significantly.
Amazon Mistake #10 – Inadequate Listing Optimization
When you enter a disorganized department store or when locating items proves difficult, you will likely choose to leave without making a purchase. The same principle applies to product listings on Amazon.
Many new sellers overlook the fact that their product listing serves as both a storefront and an advertisement for their offerings. Therefore, it is essential to ensure that your product listing is meticulously crafted. This includes utilizing high-quality product images, compelling titles, comprehensive descriptions, and competitive pricing.
If you are uncertain about how to create an optimal listing, consider seeking assistance from a professional. Jungle Scout, a comprehensive platform for Amazon sellers, features a marketplace of skilled marketers, copywriters, photographers, and other experts who can aid in product optimization.
Potential Financial Impact
To illustrate this point, let us revisit the example of impressions.
Assuming a fully optimized product achieves a conversion rate of 20%, while a poorly constructed product listing converts at only 15%. If a product receives 10,000 impressions in a month, this results in a difference of 200 sales versus 150 sales. With a profit of $5 per unit, this equates to a potential loss of $250 in profit.
What errors have you encountered on Amazon?
This compilation highlights numerous mistakes associated with Amazon FBA, yet there are countless other errors or oversights that sellers may experience when launching a new venture.
However, there is no need for concern! Fortunately, almost all of the Amazon FBA errors outlined here can be addressed or reduced through awareness and the utilization of appropriate tools. Consider exploring Jungle Scout for solutions and resources to enhance your selling experience.




