If I bought the item at $15, I’d make $12.50. All of their fees are the reason why I have no want of going through them for business. Yes, you can. When aspiring entrepreneurs first discover selling on Amazon, one of the big questions they inevitably ask is, “How much are Amazon FBA fees for sellers?”. Thank you! Hi, and thanks a lot for this information! $0.15 per unit per month: Fulfillment: $2.41 to $137.32 per unit. Thank you for response. In another word they take a cut of 57% off the item price. I began writing a blog recently and noticed that manyy blogs simply rework Usually the fees come out to around 25-30% if you include the FBA fee. Dominate your segment and maximize your margins. I am kind of confused. Dave lives in Norman, Oklahoma with his wife, Tracy, son, Jack, and a whole mess of pets. Thank you so much & have a great day! really excellent, keep up writing. Amazon FBA Fees: The Cost of Selling Using Fulfillment by Amazon As awesome as it would be, selling on Amazon isnât as simple as uploading an item/description and watching the money roll in. A quarterly study that explores changes in consumer behavior. If you want to do the monthly FBA it’s fee is $39.99, plus a referral fee of 15% or less (depending on the product) plus a storage fee , plus a size fee? Your email address will not be published. To know more in detail about the following, refer to the FBA Fulfillment Fees page.. FBA fee overview: For an overview of the FBA fee structure with additional information about fees for core FBA services. For example, if you earn $40/hour at your day job and it takes you 10 minutes to fulfill a product that you sold on Amazon, the opportunity cost is $6.67. Mattresses will be charged 15% regardless of price point. The FBA model is so complex and loaded with fees.. Hard to calculate in advance what a sale costs since you are paying percentages but also monthly fees. Otherwise, the fees are subtracted from the purchases and taken out of the amount they award you every two weeks. Yet they also charge the buyer shipping cost. Fulfillment by Amazon (FBA) helps sellers grow by giving them access to Amazonâs world-class fulfillment resources and trusted shipping options. With media items (books), you will also pay a closing fee of $1.80 per media item that is sold. To learn more about how Amazon uses cookies, please read the, © 2021 Amazon.com, Inc. or its affiliates. I actually just had a few specific questions, say I wanted to ship to Amazon, sports equipment to sell, how much would it cost to ship. It kind of seems like a lot of fees. I’m sure it’ll go up every year. The Amazon FBA fees cover the total costs to do all of that work, including paying their own employees. Hey Bethany! … Or do I need to delete my listing to avoid stor fees? Thank you for your time and enegry to put this Informative article together. The total fee/cost (referral + FBA) that Amazon charges for this item is $16.94. High volume listing fees are paid at the same time as FBA storage fees. The fees listed below reflect Amazon’s, Looking to start an ecommerce business? But, like the fees an individual seller pays, subscription fees are taken from your Amazon account balance. For storing inventory in other EU countries, VAT obligations apply. These are the current monthly storage fees for storing products in Amazon’s fulfillment centers: Amazon conducts inventory clean-ups on the 15th of each month. Typically, this fee is a flat percentage, often 15% or less. Thank you so much for this article, I found it incredibly helpful in doing research to see if this would be a good selling platform primarily for shoes. 3 SAR per cubic foot per month. However, you don’t have to pay these fees upfront. So we know he is not running a charity and there will be some costs involved with setting up a FBA business. : During Amazon’s busy seasons, these fees may go up to persuade sellers to remove slow-selling inventory. For example, if you are selling a T-shirt that weights whose outbound shipping weight comes to 1.2 pounds, then its Amazon FBA fees will work out to be $5.19 per unit. The best way would be to do PPC. The fees listed below reflect Amazon’s Fee Schedule for 2021. I sell a game which has a footnote of “2,” under fees and I can’t figure out what it is. Cheers. Well done, For the detailed fees, please refer to FBA Rate Cards, On this site, we use cookies and similar tools (collectively, "cookies") to provide and improve services to you and to show ads. The Amazon seller fee is a separate fee but the FBA fee previewer does include both the Seller Fee and FBA estimated fee in your cost estimatesâhere is specifically what the Amazon Fee Preview page states: âThe Fee Preview column showcases the core fees for Selling on Amazon and Fulfillment by Amazon for a given product. Shipping and packaging cost $11.00 ($8 shipping + $3 packaging according to the rate on the chart above. Amazon FBA fees are what it costs you to sell your items via the Amazon platform. You can sell your products on any platform you please. ; Fee Preview: Product Fee Preview helps you estimate the FBA fees for products in your FBA inventory. Amazon has very cheap shipping rates with UPS but that question is impossible to answer without setting up the shipment in seller central. Help / Fulfilment by Amazon (FBA) / FBA features, services and fees / 2021 Amazon Europe fee reductions and promotions 2021 Amazon Europe fee reductions and promotions This continues to be an incredibly challenging period for entrepreneurs and small business owners around the world, but you continue to meet the challenge and serve customers every day. If your products are priced at less than £9, weigh less than or equal to 250g (including packaging weight), have dimensions less than or equal to 30 x 22 x 2.4 cm, and are listed on Amazon.co.uk, they may be eligible to be fulfilled with our new, Local fulfilment fees vary from marketplace to marketplace, and fees indicated here represent the fee of the marketplace with the lowest fulfilment fee across Amazon.de, Amazon.fr, Amazon.it and Amazon.es for your productâs dimension and weight. Additional fees for FBA sellers include Sellers who are looking to sell with FBA will incur the following fees. I understand that some items must be vetted, or approved before sale, and shoes appears to be one of them. During the clean-up Amazon records any products that have sat in their fulfillment centers for 180 days or longer. I am going through some of these issues Appreciate a lot!!! All rights reserved, Learn more on monthly and long-term storage fees âº, Pan-European FBA programme pricing page âº, The dimension and weight of the item (standard or oversize), The channel the item gets sold on (amazon.co.uk, any other of Amazonâs European websites or any other non-Amazon-related sales channel). So, although I have to pay more fees as an Amazon FBA seller, ultimately it would end up costing me more to pack and ship my own products as an FBM seller. The Fulfillment by Amazon (FBA) fee is a flat fee per unit, based on the size and weight of the item. I like this blog it’s a master piece! Just simply put amazon TAKES minimum 40% of GROSS sale . and I. Like the referral fee, the closing fees are deducted from the proceeds of the sale so you do not need to pay these fees in advance. FBA Fees. Yes, that is correct. Amazon FBA Fees For Non-Amazon Products â Multi-Channel Fulfillment. On these dates, inventory that has been in KSA fulfillment centers for 365+ days incurs a long-term storage fee (LTSF) of 30 SAR per cubic foot. For example if you sell jewelry, the referral fee is 20% for the portion of the total sales price up to $250 and then 5% after that. There were times when I would use the FBA calculator on items and Amazon fees were literally more than the selling price of the item! They are then subtracted from the amount Amazon places into your Amazon account balance. Likely, you will have the same fees as in the US such as the media fee and referral fees. wish this fees would be itemized and not just put in the statement as “amazon fees”. A referral fee is the âcommissionâ paid to Amazon everytime a sale is made on their platform. For example, as an FBA seller selling a sword on Amazon for $30, I would pay $4.50 in referral fees and $11.64 in FBA fees. article of some genuine value to your readers I truly do not understand the estimated fee per unit sold. Our flexible rate structure makes it easy to be more competitive With Fulfilment by Amazon (FBA), you only pay for the services you use. As mentioned, Amazon FBA can be used to ship products from your own website or sales channels. In the UK, you have to consider the VAT. We define this as a packaged unit thatâs 12kg or less in weight, 45cm or less on its longest side, 34cm or less on its median side, and 26cm or less on its shortest side. Is there a link or an article I can check to get more details on this process? ⦠Thank you for taking the time to put this article together. Weather it be a warehouse worker or a third party seller. However, the benefits of teaming up with Amazon far out weigh the costs involved. my home. But, like the fees an individual seller pays, subscription fees are taken from your Amazon account balance. Its been a month since I tried to list the product. The illustration given above on 300 standard size items being sold per month, the FBA fee has been shown as 975$ which means 3.25$ per unit, which is in contrast with the information of 2.41$ per unit in the given table. Wondering if my listing is inactive, as have run out of stock, am I still charged storage fees? Let us know in the comments below! Quality articles is the crucial to attract the people to visit the website, that’s what this Does that mean they get paid from both buyer and seller for the shipping cost? To compare FBA and FBM costs, check out Amazon’s free FBA Revenue calculator (pictured above). Below is a breakdown of Amazon FBA fee increases since 2014. Well done. Use our fulfilment fee calculator to see just how cost-effective it is to sell your products with FBA. Your email address will not be published. He shares his Amazon sales knowledge as a professional writer and social media influencer. Itâs usually cheaper than for other agents as Amazon negotiates for shipping discounts ; Individual seller fees: If you are not a professional seller, you pay a fee of $0.99 on every product you sell Doing retail arbitarge does not give any profit at all because of all these fees after your product sells. Also, we are in the UK so how does it work and what is the cost if people in the USA or Germany for instance want to buy our books on FBA. How does this process work? If after 180 days, I realize I realize too much inventory is with Amazon, can I request some of the inventory be forwarded to my shop? Depending on the type of seller account you have, you will have to pay either the individual per-item fee Amazon charges you each time you make a sale transaction, or you will have to pay a monthly subscription fee. How have Amazon’s fees affected your business? Audkence engagement and material value are king. If you have no stock available in Amazon’s warehouses, you will not be charged storage fees. While I’m not totally familiar with all of the fees there, I do know that EU sellers typically have to worry about the VAT when they sell products. and below, and scale upward the heavier the items get. And while we don’t have an article that goes over those different processes, the Consumer Product Safety Commission has a post that you might find useful: https://www.cpsc.gov/Business–Manufacturing/Testing-Certification/General-Use-Products-Certification-and-Testing. It’s outrageous. The amount depends on the product category. Read our comprehensive guides and case studies. Note: If your item weighs more than the options above you may need to increase your packaging size. Profit (approximates) = $6.50-$1 (15%) -$2.50 (FBA-individual) -0.33 (storage) -1.80 (flat fee media)-$0.40 (courier to send to amaz center) =$0.50 ie zero profit except to Jeff! Do you know if there are taxes or other additional costs to this? In order to provide ecommerce entrepreneurs with all the information they need to succeed with their Amazon ventures—from launch, to first sale, to growth and scaling—we’ve updated our content for 2021. Am i missing something? There are two types of seller accounts on Amazon: individual and professional. The only fee you’ll pay ahead of time is Amazon’s subscription fee if you’re listed as a professional seller. Â, A flat fee per unit, based on the product type, dimension and weight. But, unless you have more than 100,000 products listed, you won’t have to worry about these fees. Thanks. Which leads me to believe that unless you are ripping people off to make up the fees, you have no business in FBA…unless of course you are clueless. I have another book for sale at $23.99 plus shipping and the estimated fee is $6.99. I think that you can still send the books through the Europoean fulfillment chain (despite Brexit), but you might check with seller support there just in case. Hi, thanks for the post – very useful information. You need to ensure the products you are buying to resell have enough margin. am i correct in thinking that these will cost $1.80 each to sell and post FBA plus storage. There are no subscription fees, contracts or minimum inventory requirements. That is almost half. Hi i want to know when i sell product on amazon fba should i pay all the fba fees before i start selling or amazon will automatically substruct the fba fees after every purchase . This adds up to $17.67. Monthly Storage Fees Storage fees are charged for all Units stored in an Amazon fulfilment centre based on calendar month and your daily average volume (measured in cubic metre). There are no subscription fees, contracts or minimum inventory requirements. Some superb thoughts; you’ve unquestionably made it on my list of blogs to watch! I have a pie chart created on my bookkeeping software to show my income, expenses, taxes ect. If you don’t have funds in your account balance, then the amount is deducted from your credit card. The easiest way to estimate opportunity costs is to estimate what you would be paid on an hourly basis as an employee and then multiply that by the amount of time it takes you to perform the action. First, determine the size tier for your product (standard or oversize). Looking to start an ecommerce business? Hi, I’m super new to this. we want to sell small children books 210 x 210 and weigh only 3.2 oz. My Question another way , if we use FBA then who gets the delivery fee? Yes, I would LOSE $1.94 for all the work. Thank you! website is providing. To cover these costs, you are charged an FBA fee, which is determined by the size and weight of your product. The best freelance services marketplace for Amazon sellers. Amazon puts a bad taste in my mouth and I will never be affiliated with them again. Hi, all is going nicely here and ofcourse every one is sharing facts, that’s Very good article. There are⦠Read More »Amazon FBA Fees & How to Minimize Them First, the fees all sellers must pay, regardless if they’re an FBA or FBM seller. Is the FBA fee discounted if you have multiple units per order? FBA fulfilment fees for Amazon.sg orders The Fulfilment by Amazon (FBA) fee is a flat fee per unit, based on the size and weight of the item. Media products such as books, DVDs, CDs, and Blu-Ray, come with a flat $1.80 fee per sale, and only sellers who focus on selling these products need to worry about these fees. Looking forward to your reply. Learn how FBA works, calculate FBA fee, pricing & earnings with Amazon FBA calculator, learn packing & delivering your orders through FBA India You are not restricted to just selling it on Amazon. Were they a deciding factor in whether or not you chose to sell a specific product? I’m not sure what you mean, could you show me an example? However I have some more questions: I want to sell a book with weight slightly under 2 lbs. If you are an FBA seller, these are the fees you’ll pay on Amazon. We analyzed millions of import records from over 200 countries to uncover how ecommerce and COVID-19 are shifting the supply of goods to the U.S. NOw when I try to list my product, Amazon does not allow it and keeps on saying product information missing (but does not specifies what kind of information). Instead, referral fees are taken out of your Amazon account after the sale is made. Sell in all EU marketplaces automatically. The fees if using FBM, will be 15% for books every time. These fees are deducted from your Amazon account balance. If you are selling via FBA, you will not receive a shipping credit from Amazon. Check out our updated guides for How to Sell on Amazon, How to Sell on Walmart.com, and How to Sell on eBay in 2021. Check out our updated guides for How to Sell on Amazon, How to Sell on Walmart.com, and How to Sell on eBay in 2021. Fee preview: Estimate the FBA fees for products in your FBA inventory. For example storage fee is 0.69$/cubic meter. Hello, I’m a bit confused and hope there is an easy explanation for me. For low priced items like your first example, the fees will eat up a lot of your profit. As an FBA seller, you do not have to pay for shipping, handling, or packaging to ship your goods. It is going down on the list of details I need to emulate as a new blogger. But their fees are outrageous! Because your products are being stored in, For those items stored for 180 days or longer, Amazon then charges the seller a. , which is $6.90 per cubic foot of storage used. https://www.cpsc.gov/Business–Manufacturing/Testing-Certification/General-Use-Products-Certification-and-Testing, 15%, except 12% for base equipment power tools, 12%, except 10% for tires and wheels products, Health & Personal Care (including Personal Care Appliances), Industrial & Scientific (including Food Service and Janitorial & Sanitation), Build custom dashboards with Jungle Scout data. It is a great way to get your new products in front of new customers. How about if they have no fee they are prime? hi, thanks for very useful info. Great breakdown. Clothing, and items containing lithium batteries, have additional fees — $0.40/unit for clothing and $0.11/unit for Items containing lithium batteries. Instead, Amazon’s fulfillment employees pick, pack, and ship your products for you. We can see that the fee increases in 2019 are truly an anomaly in how low they are. Finally, calculate the fulfillment fee according to the productâs shipping weight (details below). If you don’t have funds in your account, then the amount is deducted from your credit card. It is in the draft but I could not complete it. Thank you. As an FBA seller, the cost of labor to ship your products is factored into the FBA fee. local_offer Tags: Amazon Seller, Selling on Amazon. It’s nice and convenient for the customer but try working for Amazon. thanks again for your very useful site. FBM sellers do not have their own separate fees like FBA sellers do. The fees listed below reflect Amazon’s Fee Schedule for 2021. They also have to handle their own customer service. I noticed each item I sold, a huge chunk of it would go to Amazon. Will read on…. This is great information and well put together. peter. Now, I feel like I am nowhere. The fee is either $5.00 or 20% of the refunded charge, whichever is less. If you know something, please help me. However If $2 is charged as delivery then i would get 0.50+2 = $2.50 profit which is viable. An LTSF fee of $11.25 per cubic foot is issued annually every 15th of February and August. You are able to set up whats called a “removal order” to have some inventory sent back to you. But the FBA fee shouldn’t be thought of as a fee more than it’s the shipping cost you’d have to pay either way. As of today, Jeff Bezos (the founder of Amazon) has a net worth of nearly $200 billion. 15% for the portion of the total sales price up to $300; and, 8% for any portion of the total sales price greater than $300, 15% for items with a total sales price greater than $10.00, 8% for products with a total sales price of $15.00 or less, and, 15% for products with a total sales price greater than $15.00, 20% for the portion of the total sales price up to $250.00, and, 5% for any portion of the total sales price greater than $250.00, 15% for products with a total sales price of up to $75, 18% for products with a total sales price above $75, 16% for the portion of the total sales price up to $1,500; and, 3% for any portion of the total sales price greater than $1,500, Individual per-item fees or subscription fees. this is exactly the details i was looking for in my google search for amazon fba summary. A referral fee is the “commission” paid to Amazon for each item sold on their platform. Use Amazon’s FBA revenue calculator to get an accurate estimation. That’s why it is very important to understand all of Amazon’s fees before selling anything. Rather than paying a fee per product sold, professional sellers pay a monthly subscription fee of $39.99. for $30, I would pay $4.50 in referral fees and $11.64 in FBA fees. Note: Learn how to preview your fees using Amazon’s Fee Preview Report. In order to provide ecommerce entrepreneurs with all the information they need to succeed with their Amazon ventures—from launch, to first sale, to growth and scaling—we’ve updated our content for 2021. Say the item price is $30 as you already suggested above. Enjoyed reading this, very good stuff, thank you. Thank you for reaching out about this, as certification requirements vary based on the product you’re planning to sell. ⦠On the 15th of each month, Fulfillment by Amazon (FBA) conducts an inventory cleanup. If you use Easy Ship or Fulfillment by Amazon (FBA), Amazon will deliver your products to the customer and charge you a fee. In that case, you would pay 0.69 cents for the 20 units if that is the only space your products take up. Note: During Amazon’s busy seasons, these fees may go up to persuade sellers to remove slow-selling inventory. Ideally if I sell the items directly (on my website or from my own store), I would charge the buyers the shipping and handling fees. The cubic metre of any Unit will be based on the Unitâs size as properly packaged and ready for shipment to customers in accordance with the FBA Programme Policies. There are actually quite a few fees, and this is one of the main disadvantages of running an Amazon FBA business. This calculator gives you an estimation based on your own entry only. As with the other fees mentioned, the refund administration fees are immediately paid through your Amazon account balance, or charged to your credit card if your account doesn’t have the money to cover it. Were I to sell the same sword on Amazon as an FBM seller, I would have to factor in the shipping cost (roughly $8.00), the cost of packaging ($3.00), and the time it took to ship it ($6.67). If i have small item & its 20 pcs can be cover in 01 cubic meter. You can also see that historically, heavier items (over 1 lb) are being hit harder by Amazon fee increases and lighter items have been largely unaffected or have seen their fees going down. Using the same book example from above, your fulfillment fee would be $5.69 (versus $2.50) to offer expedited, 2-day free shipping. Different fee rates are applicable based on distance. Fees are calculated on, Items in all categories that are bigger than the standard sizes, Pay for the space you use to store your items in an Amazon Fulfilment Centre.Â. I live in Canada and intend to utilize FBA for selling my line of clothing. FBA fees cover the cost of storing your products in Amazon's fulfilment centres; picking, packing, and shipping orders; and providing customer service for products sold. Calculate potential profit, estimate product sales, and more. Like referral fees, these fees are deducted only after a sale is made on Amazon. Glad I detected this on google. Im a month in selling on amazon but the fees really hurt. If i sell a book for $6.50 on amazon thru FBA i calculated i would get $0.50 profit (see calc below) after all costs u have described. The small sellers are the ones that hurt. Hi, thank you for the article. I wish more FBA sellers read this article or do some math because I doubt a lot are making any money. 2 AED per cubic foot per month. Typically, this fee is a flat percentage, often 15% or less. Like monthly storage fees, long-term storage fees are deducted on the same date each month from your Amazon seller account balance or from the credit card which you put on file when you registered as an Amazon seller. Thanks. Amazon FBA Fees Explained First of, whether you sell on Amazon through Fulfillment by Merchant or Fulfillment by Amazon (FBM or FBA), youâll need to pay referral fees. Check out our updated guides for, However, you don’t have to pay these fees upfront. If the issue persists, contact our Customer Success team here on Jungle Scout and they can help you navigate the issue. Fulfillment by Amazon (FBA) fees: Inventory storage: $0.69 to $2.40 per cubic foot per month for non-dangerous goods. Amazon has more than 300 million active customers, with 90 million Prime subscribers in the U.S. alone. Check this box, if you want to sell your products on all five Amazon European marketplaces (Amazon.co.uk, Amazon.de, Amazon.fr, Amazon.it and Amazon.es) and get access to millions of additional buyers. I am wondering if you have considered using Amazon as a marketing strategy to get your products “out there” (alongside other methods). The fulfillment fee will be based on the weight and dimensions of your product. With FBA, you only pay for the services you use. Also how do I go about advertising the product, should I use, PPC or another method. I find this post to be very informative and feel that due to Amazon seller’s confusion and/or being misinformed regarding Amazon Seller fees, many sellers just avoid the entire selling platform or just sell as a “hobby.” I’ve been guilty of this myself as it’s way too confusing to me so I’ve just sold intermittently on Amazon and eBay. However, costs will be different than products sold on Amazon.com. I am listing and shipping books from home, not trying to start a business and I am not having Amazon fulfill the items, and the fees seem unusually high. Thanks for posting this, it IS VERY HELPFUL. Would that be a better bet than the FBA? Get everything you need to know to start selling on Amazon. this is not counting if you buy their advertising tool. That means if I bought this item at the price of $15 to sell on Amazon, my net revenue would be -$1.94. However, the costs to sell as an FBM seller are often higher than those of an FBA seller, since FBM sellers have to store, pick, pack, and ship their own products. Also, the storage fee, is it charged only after a unit has been sitting in warehouse for full 30 days or is it also charged on the unit which was sold on day 1? FBA inventory management Use the tools in your seller account to list products, create shipping plans, send in shipments, track and monitor your shipments, and remove inventory from Amazon fulfillment centers. Looking to start an ecommerce business? Dave, this was a very useful article for me. so shocked, feels like we shopped for amazon for them to sell and get the profit. These fees are paid regardless if you are an Amazon FBA or FBM seller. 2021 Update: If you’re going to use the used book model, I suggest selling books via Amazon EU. You can also use Amazon FBA for products that are sold on channels other than Amazon. This article takes a look at the fees you’ll pay as an Amazon seller, breaking them out into four distinct sections: And if you need a calculator for fees, simply grab our FREE Amazon FBA fees calculator below. For products that have been in Amazon’s warehouses for longer than 365 days, you’ll incur a charge of $0.15 per unit. If you have inventory in an Amazon warehouse at the end of the month, Amazon charges you a monthly storage fee. Sorry to hear about the issue. Dave Hamrick is an entrepreneur and has been an Amazon seller since 2015. One Question though: how is the delivery charge factored in? Sell in all European stores automatically. Is there any restriction placed by Amazon to prevent sellers from using another e-commerce platform to sell the same product? FBM sellers, on the other hand, must determine cost of labor by measuring their opportunity costs. FBA fulfillment fees â typically based on size and weight; this is the fee for having Amazon handle shipping and logistics Monthly storage fees â typically based on volume (cubic feet) and length of time in storage at an Amazon fulfillment center FBM (Fulfillment by Merchant) sellers: FBM sellers fulfill their orders themselves. Most referral fees are between 8% and 15%. Ship your products to our fulfilment centres and pay for fulfilment services and storage space used. Hi, I’m speaking with Amazon next week to finish my setup to be an FBM seller. To sell on Amazon I pay them a commission (referral) fee of $4.50 (15% of $30), which is fair. This adds up to $17.67. I understand they charge fees for doing work and taking care of the customer. If a shopper requests a refund on a product for which you have already been paid and Amazon issues the refund, Amazon charges a fee to process it. Because your products are being stored in Amazon’s fulfillment centers, Amazon charges storage fees to maintain your inventory. Then will i pay 0.69$ for all 20 pcs or i will pay 0.69×20=13.8$. Amazon is increasing its fulfillment fees on all of its products beginning February 18, 2020. After registration, you only need to create listings in your home marketplace and eligible listings will automatically be re-created in the remaining four marketplaces via our âBuild international listingsâ tool. Next, use the tables below to determine which fee schedule will apply. Finally, Amazon’s miscellaneous, optional services fees. On the 15th of each month, Fulfillment by Amazon (FBA) conducts an inventory cleanup.