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ClassAdLister Arbitrage
ClassAdLister Arbitrage Setup and Usage

Prerequisite: You must have the eBay and Amazon APIs configured and be a subscriber in order to use this Feature.
See the tutorial videos or initial setup section for more information on setting up the eBay and Amazon API.

Setup: Select Manage->Custom Fields.
Tap the Orange + button. Enter “CAL_ARBITRAGE” for the custom field Name.

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Optionally enter “>0” for the Match value. “>0” means that anything entered will display the color chosen.
Optionally select a color. This will give a visual indicator on the home screen for items that have been configured for Custom Fields.

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Usage: After entering a new item, make sure the item has a valid GTIN entered in the GTIN field (generally a UPC code or ISBN).

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Verify this GTIN is valid and can be found with the eBay API and the Amazon API by tapping Search Web. If the item is not found on both eBay and Amazon, configuring the item for arbitrage will not produce any results.

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Scroll down to the custom fields section and tap the Arbitrage settings button.

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Configure Arbitrage by entering a value for Profit Margin. Profit margin is defined as how much you would like the price difference to be on the configured sites. For example, for eBay VS Amazon entering a value of 30 equates to the price must be 30% higher on Amazon than it is on eBay in order for the item to be included on the Arbitrage report.
Optionally enter an eBay Title Filter. The title filter further restricts the search by making sure the item has the text entered included and/or excluded from the title. This field is important and you will need to become proficient at configuring this field in order for the Arbitrage report to be useful. Just including items that match by GTIN on both eBay and Amazon will produce many false positives.
Let's say you are looking for books on eBay/Amazon and you have a GTIN entered that is the ISBN for the book. You run the Arbitrage report and get a false positive because the wrong edition of the book is also found on eBay. You may eliminate this false positive by entering the edition number in the eBay Title Filter. Enter “2nd” for example to make sure that the title has the word “2nd” in it also. After doing that the next false positive is that PDF books are being found on eBay. To eliminate this false positive add -PDF to the eBay Title Filter. Using “-” in front of a word makes sure it is not included in the search. Please note that the “-” must be used in addition with another word, not by itself. So now the eBay Title filter looks like this: “2nd -PDF”. If you would like to exclude many words from the search, put them in parentheses separated by commas after the "-" like this: "2nd -(PDF, eBooks, EBOOK, International)". When testing eBay Title Filters, set the Profit Margin to a really small value, like 1 for example so you may verify the Title Filter is doing what you expect it to do. Refer to the following url for more advanced query options:

When entering many GTINs, make use of the scanner icon on the home page. If you email yourself several GTINs and want to quickly enter them and make sure they are valid and found on both Amazon and eBay, put ClassAdLister in external scanner mode and copy and paste the GTINs into the scanner dialog. When you tap the new item button after spot checking the search was a success, the Amazon thumbnail pic will be pulled also if available. This can be useful when researching items.

Arbitrage Report with no eBay Title filter:

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Arbitrage Report with eBay Title filter of 5th for same item:

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To run the Arbitrage report for the current item, tap the "Test Arbitrage Report" button for the item being configured for arbitrage. To run the Arbitrage report for all items that have been configured for Arbitrage, select Manage->Reports/Tasks. Select Arbitrage Report from the drop-down and tap the run button. If the price difference matches what you have configured the item will show up on the report. Please note that search for eBay and the Arbitrage report query for eBay are different. It can be confusing sometimes that an item shows up when tapping search web but it does not show up when running the Arbitrage report. Generally this is because the Arbitrage report only includes items that may be purchased immediately. I.E. “BuyItNow” is available. Auction items are included when using the search web functionality.

Limitations: There are limits on how many API calls you may make per day on eBay and Amazon. Consult your API setup on the respective sites for these restrictions.
There is no logic to verify you are able to list the item on Amazon. You must do this manually by attempting to the list the item on Amazon first and verifying you do not have listing restrictions for that category.

Known Issues: Items configured for calculated shipping on eBay do not include the shipping cost when calculating the profit margin.

Tips: Add a custom field called AmzVerified. Enter a match value of a "y" and assign the field a color. Before even bothering entering the arbitrage Profit Margin and Title filter, verify there are no listing restrictions by attempting to list the item on Amazon. ClassAdLister makes this easy by automatically populating the GTIN for you on Amazon and doing the search. If you tap the "Listing limitations apply" link and there is not a "Sell yours" button, you aren't going to be able to flip this item on Amazon. If there is a "Sell yours" button, close the browser and enter a "y" in the AmzVerified custom field. Now you will have a visual indication on the home screen for items that you have verified may be listed on Amazon.

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