Complete Sourcing Guide

Learn how to find winning products to sell on eBay using Infinity's four sourcing tools.

What Is Sourcing?

Sourcing is how you find new products to sell. A good product is one that people are already buying, that you can get for a low price, and that you can sell on eBay for more than you paid. Infinity gives you four different tools to help you find these products. Each tool works a little differently, so you can pick the one that fits what you are trying to do.

The four tools are:

1. Bulk Source — get a big list of product ideas fast.
2. Keyword Search — start with a word and find trending products on eBay.
3. Reverse Source — copy the idea from a store that is already doing well.
4. History — go back and look at searches you already ran.

You can switch between these tools using the tabs at the top of the Sourcing page. Let's go through each one.

Bulk Source

Best for: getting a huge list of product ideas in one click.

What It Does

Bulk Source looks at Amazon's entire product catalog and finds products that match the filters you set. You tell it what kind of product you want, and it hands you back a list of ASINs (Amazon product IDs) to look at.

How To Use It

1. Pick how many leads you want. You can ask for 50, 100, 200, or 500 products at a time.
2. Type a keyword (optional). This is a word or two that must appear in the product title, like wireless earbuds or yoga mat.
3. Pick a category (optional). You can narrow your search to one part of Amazon, like Sports & Outdoors or Home & Kitchen.
4. Set a price range. Tell it the lowest and highest Amazon price you want to see.
5. Set a sales rank range. Sales rank tells you how popular a product is. A lower rank means it sells more often. Under 100,000 is usually a good sign.
6. Set a minimum monthly sold. This is how many units Amazon says the product sold in the last month. Higher numbers mean more demand.
7. Click Search Amazon.

What To Do With The Results

You will see a table of ASINs. Click any one to open the product detail page, where Infinity will show you price, rank, profit estimate, and help you list it.

Tips

• Start with a wide price range and high monthly sold to see what is actually moving.
• If you get too many results, narrow the category or lower the max sales rank.
• If you get too few results, raise the max sales rank or drop the monthly sold minimum.

Keyword Search

Best for: seeing what is actually selling on eBay right now for a topic you care about.

What It Does

Keyword Search looks at eBay (not Amazon first) and shows you what sellers are listing for a word you type in. It also pulls stats for that keyword: how many listings exist, how many sellers are selling it, the average price, and the price range. After you see the eBay results, you can pick items and have Infinity look them up on Amazon to see if there's a profit opportunity.

How It Works

1. Type a keyword. Something like camping gear, phone case, or easter.
2. Set a minimum and maximum price (optional). This keeps out items that are too cheap or too expensive for your store.
3. Click Search eBay.

Reading The Results

You will see:

• Total listings — how crowded that keyword is.
• Unique sellers — how many different sellers are in that space.
• Average, median, and price range — what the market is paying.
• Top categories — which eBay categories the products live in.
• Price distribution — a small bar chart showing which price bands are the busiest.
• Item table — the actual eBay listings that match.

Finding Profit Opportunities

Below the eBay items is a button called Find on Amazon. Check the boxes next to the items you like, then click that button. Infinity will look those items up on Amazon and show you the Amazon price and whether there is a profit to be made.

Tips

• A keyword with lots of listings and lots of sellers is crowded. Hard to stand out.
• A keyword with lots of sales but few sellers is the sweet spot. Less competition.
• Use the "Top Categories" list to find niches. If camping gear mostly lives in one category, that category might be worth exploring on its own.

Reverse Source

Best for: learning from a store that is already winning.

What It Does

Reverse Source pulls the full list of products that one specific eBay seller is currently listing. If you know a store is doing well, this lets you see their whole playbook at a glance.

How To Use It

1. Type an eBay seller's username.
2. Click Get Catalog.

You will see every active listing they have, with prices and categories.

Why It Is Useful

• You can see what a successful seller is focusing on.
• You can spot patterns — do they stick to one category, or are they all over the place?
• You can pick specific listings and click into them to see if they would work for your store too.

Tips

• Find successful sellers by browsing eBay for popular items and checking who is selling them.
• If the seller has hundreds of listings, focus on the ones with prices in your comfort zone.
• Click any item in the catalog to open its detail page and evaluate it like any other lead.

History

Best for: picking up where you left off.

What It Does

Every time you run a search with any of the other three tools, Infinity saves the results. The History tab is where all of those past searches live. You can open any one of them and see the exact same results again, without using any new lookups.

How To Use It

1. Click the History tab.
2. You will see a list of past searches, newest first. Each one shows the keyword or seller you searched and how many items came back.
3. Click any search to reopen it.

Why It Matters

• You do not have to remember what you searched — it is all there.
• Picking back up from History does not cost any extra lookups.
• If you looked up an item on Amazon earlier, that Amazon info is still saved with the search. You do not have to pay to look it up twice.

Working With A Lead

Once you click any item from any of the four tools, you land on the lead detail page. This is where you check if the product is worth listing and, if it is, list it to your store. The page always shows you two sides: the eBay side (what the product looks like on eBay) and the Amazon side (what it costs on Amazon). What shows up first depends on where you came from.

Starting From An Amazon Lead

If you clicked a lead from Bulk Source, you started with an Amazon product. That means Infinity already knows the Amazon side.

1. The Amazon card fills in automatically. You'll see the ASIN, Amazon price, sales rank, monthly sold, rating, and category.
2. The eBay card starts empty. Click Find on eBay and Infinity will search eBay for listings that match this product.
3. Pick the eBay match that looks right. Infinity picks the top match for you and shows it at the top of the list with a highlighted border and a "Selected" label. If the match is wrong, click any of the other matches below it to switch.
4. Now you can see the profit picture. Once both sides are filled in, a green or red box shows up with your estimated profit. Green means you'd make money. Red means you'd lose money.

Starting From An eBay Lead

If you clicked a lead from Keyword Search, Reverse Source, or an eBay-origin row, you started with an eBay listing. That means Infinity already knows the eBay side.

1. The eBay card fills in automatically. You'll see the price, the eBay fee, the seller's name, and their feedback score.
2. The Amazon card starts empty. Click Find on Amazon and Infinity will search Amazon for matching products.
3. Pick the Amazon match that looks right. Just like on the eBay side, Infinity picks the top match and shows it at the top with a highlighted border and a "Selected" label. If it's wrong, click any of the others to switch.
4. Now you can see the profit picture. Once both sides are filled in, the green or red profit box appears.

Listing The Lead

Once both sides are filled in and the profit box is green, you can list the product on your eBay store right from this page.

1. Set your gross margin with the slider. This is how much markup you want on top of the Amazon price. A 50% margin means you sell for 1.5x what you paid.
2. Set your ad spend with the slider (optional). If you want to run eBay Promoted Listings, pick a percent. Set it to 0 if you don't want ads.
3. Pick a campaign (if you set ad spend above 0). This is one of your existing eBay ad campaigns.
4. Check the price. Infinity shows the final listing price, the Amazon cost, the eBay fee, and your estimated profit.
5. Click List on eBay. Infinity lists it for you. When it's done, you'll see a link to the new listing on eBay.

Tips

• Always verify the selected match. Infinity is usually right, but the top pick is not always the best pick. Scan the other matches before listing.
• Start with a 50% margin. That is the default and it works for most products. If the profit box is red at 50%, the product is probably not worth listing.
• Use the "Other Matches" list to bail out early. If none of the matches are close to the real product, the lead is probably not a good one. Move on.
• Listed leads are saved. If you close the page and come back, your selected matches and margin settings are still there.

Putting It All Together

Here is a simple way to use all four tools as a team:

1. Start with Bulk Source. Cast a wide net. Get a list of 100–200 leads in your price range.
2. Cross-check with Keyword Search. Take the product names that look interesting and type them into Keyword Search to see how crowded they are on eBay.
3. Use Reverse Source to study the competition. Find the top sellers for those products and see what else they list.
4. Use History to come back to anything you did not finish. No lead goes to waste.

The best sourcing is not about finding one perfect product. It is about running through a lot of ideas quickly and keeping the good ones. Infinity's four sourcing tools are built to help you do exactly that.