Knowledge Base/Product Documentation/Importing Products
Supported Fields
Colin Murphy
posted this on May 23, 2010 12:02
Below are all of the fields that SingleFeed supports, with simple explanations of each. For optimal results provide as many as possible!
Note that while field names are not case sensitive, they will have to match exactly. For example, UPC must have the exact field name: UPC (UNIVERSAL PRODUCT CODE).
The order of these fields is not important.
Required Fields
The following fields are required in order to submit your products through SingleFeed.
'UNIQUE INTERNAL CODE'
A SKU or unique internal ID is required for all products. This is not the Manufacturer Part Number or Universal Product Code. If you don't have a unique internal SKU system, create an ordered list, giving each product a number: 1, 2, 3, 4, etc. This ID CANNOT change and must stay consistent throughout imports. It also must be unique to each product. SingleFeed will reject items with duplicate UICs. This field is case sensitive. Example - ABC123 and abc123 are two unique products.
'PRODUCT NAME'
Short, simple description of your product. Don't use words like best, lowest price, on sale, etc. Maximum number of characters is 100.
'PRODUCT DESCRIPTION'
Describe the product you're selling. Don't use words like best, lowest price, on sale, or other promotional text like "free shipping", etc. Do use the popular keywords users would search for to find that item. Maximum number of characters is 900.
'PRODUCT PRICE'
This is the regular price for the item before rebates, sales, coupons, etc.
Example: 123.99. Don't use a '$'.
'PRODUCT URL'
This is the link where the product is located on your site. Don't use a generic URL. You must start the link with http://
'IMAGE URL'
This is the URL for the image of the product you're selling. Don't use a generic URL. You must start the link with http:// and you must be using a standard file extension like .jpg, .gif, etc... Do not include images with watermarks.
'CATEGORY'
This is the category on YOUR site. Separate category levels with '>' For example, if you sell air conditioners under your Home & Garden section, you'd put "Home & Garden > Air Conditioners". Besides sending your site's categorization to some shopping engines, SingleFeed depends on this field to properly categorize your products into each shopping engine's specific taxonomy. Because of this, you should make sure to include the specific categorization for every product you submit. 'Home and Garden' or 'Electronics' is not enough, you must go deeper. Also, categories like 'Clearance' or 'Full Site Search' are not acceptable. Not including a proper category will significantly hold up the categorization process.
'MANUFACTURER'
The manufacturer or brand of the product. If you personally manufacture the product, insert your name.
Strongly Recommended Fields
The following fields are strongly recommended, depending on the type of product and the engines you are submitting to.
‘STOCK STATUS’
This field accepts 2 values: Y, N. If left blank, SingleFeed will enter a default value of 'Y'.
Please make sure to provide accurate Stock Status information for all items, or leave out-of-stock items out of the feed.
For Google Product Search only: we also support AVAILABLE FOR ORDER and PREORDER
‘CONDITION (IF NOT NEW)’
This field accepts 4 values: New, Used, OEM, Refurbished. If left blank, SingleFeed will enter a defalt value of 'New'.
‘MPN (MANUFACTURER PART NUMBER)’
This is one of the most important fields you will fill out, so take the time to make sure you enter the correct MPN. If you also know the UPC code for the product, fill that into the appropriate field, too.
‘ISBN (IF BOOK)’
This is one of the most important fields you will fill out, so take the time to make sure you enter the correct ISBN. ISBNs are 10 or 13 digits long.
‘UPC (UNIVERSAL PRODUCT CODE)’
This is one of the most important fields you will fill out, so take the time to make sure you enter the correct UPC. UPCs are either 10 or 12 digits long.
‘PRODUCT COST’
Optional, but recommended for more accurate ROAS/ROI reports. Provide the actual cost of the product from your supplier/distributor (ie- what you pay for the product). This is used solely for SingleFeed Reporting tools. US dollars, with a decimal point and no $ sign.
‘MSRP’
The manufacturer's suggested retail price for the item. US dollars, with a decimal point and no $ sign.
'SALE PRICE'
This field is strongly recommended if your product is on sale. If filled out, this price will overwrite the main Product Price on some shopping engines. The others will display both prices together (highlighting the fact that your item is on sale... and this is the real benefit). Only fill out field if the product is on sale. You are still required to include the regular price in the 'Price' field. Example: 99.99. Don't use a '$'.
'SHIPPING COST'
Optional, but strongly recommended if your store has a flat rate shipping option (ie: it doesn't rely on "zones"). List the lowest priced flat rate option for the US. If shipping is free, enter 0. Otherwise, use the following format: 4.99 (no '$').
'SHIPPING WEIGHT'
Optional, but recommended if you price shipping according to weight. Enter a numerical value in pounds with no more than two decimal places. ie: "7.25"
'PROMOTIONAL MESSAGE'
Optional, but strongly recommended. This field accepts a predefined set of values, most of which are listed here:
Authorized Dealer
2-3 Day Shipping
See Site For Better Price
Price Before Rebate
Same Day Shipping
Kit Special
Store Pickup Available
Gift with Purchase
Buy Direct from Mfr
Extended Warranty
Earn store loyalty points
Downloadable Software
Shipped from Mfr
Limited Time Offer
Rebate Available
7-14 Day Shipping
2-4 Week Shipping
% Off Special Offer
Downloadable format
Price before $25 rebate
Price before $30 rebate
Price before $50 rebate
Price before $100 rebate
Free Printer Offer
Free Gift Card
Product Free With Service Agreement
Free Shipping
Free Returns
Free Shipping on Orders Over $x (most $ amounts supported)
Volume Discounted
Free $25 gift card with purchase
10% Off Special Offer
Please file a support ticket if you would like to use a promotional message not listed here.
'GENDER'
Optional, but strongly recommended for clothing. This field accepts the following values: male, m, female, f, unisex, u. Separate values with a comma. Note that this field is required for Apparel products on Google Product Search.
'SIZE'
Optional, but strongly recommended for clothing. Specify the size: S, M, L, XL, or 2, 4, 6, 8. Separate values with a comma. Note that this field is required for Apparel products on Google Product Search.
'COLOR'
Optional, but strongly recommended for clothing and other items. Note that this field is required for Apparel products on Google Product Search.
'AGE RANGE'
Optional, but strongly recommended for toys. The recommended age range for the product. Separate the range with a dash (-) and include the unit (months or years). Note: please use the separate Google Age Group field to submit Age Group information to Google Product Search.
Example: 0-6 months, 5-8 years
Recommended Fields
GOOGLE ONLY:
Please see additional details on Google's Product Feed Specifications page.
'GOOGLE SHIPPING'
For Google Product Search Only. The shipping options available for the item, separated by commas.
This field consists of four sub-attributes. Separate each sub-attribute with a colon, and each shipping attribute group with a comma.
|
Examples:
:::7.95
US:::0
US:MA:Ground:5.95,US:024*:Ground:7.95
'GOOGLE TAX'
For Google Product Search Only. The tax rate for the item, separated by commas. This field consists of four sub-attributes. Separate each sub-attribute with a colon, and each tax attribute group with a comma.
country (Optional) The country an item is taxed in (as an ISO 3166 country code). Example: US
region - (Optional) The geographic region that a tax rate applies to, e.g., in the US, the two-letter state abbreviation, ZIP code, or ZIP code range using * wildcard. Example: CA, 946*
rate – (Required) The tax rate as a percent of the item price, i.e., number, as a percentage. Example: 5.00
tax_ship - (Optional) Are shipping costs taxed? (Y/N). Example: y
Examples:
::0:
US::0:
US:CA:8.25:y,US:926*:8.75:y
'Item Group ID'
Shared identifier for all variants of the same product. All items that are color/material/pattern/size variants of the same product must have the same item group id. If you have a “Parent SKU” that is shared by all variants of a product, you can provide that as the value for 'item group id'. Required for Apparel products on Google Product Search.
'Google Age Group'
Target age group of the item. Accepts either 'Adult' or 'Kids'. Required for Apparel products on Google Product Search.
'Pattern'
The pattern or graphic print featured on a product. For example, a t-shirt might have a logo of a sports team and have pattern values of “Bears”, “Tigers”, etc. A dress might come in two prints, and have pattern values of “Polka Dot”, “Striped”, “Paisley”, etc. Required for Apparel products on Google Product Search.
'Sale Price Effective Date'
Used in conjunction with sale price. This attribute indicates the date range during which the sale price applies. For more details check out this Google Merchant Center Help Article
Example: 2011-03-01T1600-0800/2011-03-03T1600-0800
‘online_only’
This is used to indicate if you have a product that is only available online and not in your physical store. There are only two accepted values 'y', if any item is not available in your store to purchase or 'n' if a customer can buy the posted item at your physical location.
'Google Alt Images'
Used to send additional images of an item to Google. For example, if you have images that show the product from a different angle than the main image, or if you have images of the packaging or the product in various settings. You can include up to 10 additional images per item. Separate each image URL by a comma. URLs must include the http:// portion and comply with regular image URL requirements. See also field 'Alt Image' for another way to submit these to Google.
‘product_review_average’
This is the average rating for one of your products based on a one to five scale, with 5 being the highest rating. The average should be based on the reviews and ratings that are displayed on your landing page and must be in between 1.0 and 5.0.
‘product_review_count’
This is the total number of reviews for one of your products. Please only count reviews and ratings that are displayed on your landing page.
'adwords_redirect'
For Google Product Search only. This is used in conjunction with Google AdWords Product Ads. Specify a specific url that the ad should redirect to. This allows you to override the feed's product URL when the product is shown within the context of Product Ads and therefore direct the user to a different page. This allows advertisers to track different sources of traffic separately from Google Product Search. You must start the link with http://
'adwords_queryparam'
For Google Product Search only. This is used in conjunction with Google AdWords Product Ads. The value of this attribute is added as a query parameter to the end of your product URL when the product is shown within the context of Product Ads. If "adwords_redirect" is present, it will append the value to the "adwords_redirect" URL. You can also use "kw={keyword}" for tracking the keyword which triggered your Product Extension Ad.
'adwords_grouping'
For Google Product Search only. This is used in conjunction with Google AdWords Product Ads. Used to group products in an arbitrary way. It can be used for Product Filters to limit a campaign to a group of products, or Product Targets to bid differently for a group of products. This is a required field if the advertiser wants to bid differently to different subsets of products in the CPC or CPA % version. It can only hold one value. Example: "comforters"
'adwords_labels'
For Google Product Search only. This is used in conjunction with Google AdWords Product Ads. Very similar to adwords_grouping, but it will only only work on CPC. It can hold multiple values, allowing a product to be tagged with multiple labels. Example: "comforters, bedding, sheets, duvets"
'adwords_publish'
For Google Product Search only. This is used in conjunction with Google AdWords Product Ads. Used to exclude select offers from Product Ads. If left blank or not included in the feed ads will show by default. Only use true or false values, no T or F. Example: "true"
'GoogleAffiliateNetworkProductURL'
For Google Product Search only. This is used in conjunction with Google Affiliate Network.
'GoogleAffiliateNetworkCategoryID'
For Google Product Search only. This is used in conjunction with Google Affiliate Network.
'GoogleAffiliateNetworkPublish'
For Google Product Search only. This is used in conjunction with Google Affiliate Network.
'GOOGLE EXPIRATION DATE'
The date that an item listing will expire. Defaults to 30 days.
Example: 2011-08-19
OTHER SHOPPING ENGINES:
'SHOPPING.COM COUPON CODE'
A single, alphanumeric code for this deal that will be displayed alongside your deal listing on Shopping.com.
Example: XYZ12345
'SHOPPING.COM COUPON CODE DESCRIPTION'
A maximum 200 character description of the deal associated to the above coupon code.
Example: 25% off on all Shopping.com orders!
'DEPARTMENT'
Optional, but strongly recommended for certain categories. The store department that the product falls under, e.g. "Living Room", "Dining Room", "Camping", "Cycling", etc. For Shopping.com only.
Example: Men's
‘KEYWORDS’
List keywords that people would search for on the shopping engines to find the product. Use words that you couldn't fit into your title. Separate keywords with commas. Maximum number of characters is 150. Example: "air conditioner, window air conditioner, ac unit"
'ZIP CODE'
Optional. The zip code from where the item ships.
'LIKE.COM SIZE'
For Like.com only. Optional, but required for shoes. Size field can be comma delimited (i.e. 7, 8, 8.5, 9). Shoes with various sizes available will need to provide size variations in the following string format: Country Code, Gender, Size, Width. Each size and each value should be delimited with an "@", and each string of information should be delimited with an ";".
Format: Country Code@Gender@Size(as a Numerical Value)@Width(for Shoes only – N/A for all other products)@site text
For example, US@M@8@W@US men's size 8Wide:Red=$50.00;US@M@9@W@US men's size 9 Wide:Red=$50.00;US@M@10@W@US men's size 10 Wide:Red=$60.00
'FORMAT'
Optional, but strongly recommended if selling Books, Music, or Movies. This field accepts the following values:
For Music: CD, Cassette, LP, or PC Based
For Movies: DVD, Laser Disc, VHS, or PC-based
For Books: Hardback, Soft Cover, or Audio
‘MUZE ID’
Required for selling media products on NexTag and strongly recommended for anyone selling Books, Music, Movies, or Video Games.
'ASIN'
For Become.com Only. Optional. The Amazon.com stock number.
'STOCK DESCRIPTION (IF BOOK/MUSIC/MOVIE)'
Optional. The condition of the product. Must be one of the following: new, like new, very good, good, acceptable
'DISTRIBUTOR ID'
For Nextag Only. Optional. The Distributor ID of your products. One of the following initials: Ingram (I, IM, IP, IA), TechData (T), eNighted (E), ISBN, UPC, LCC plus the number ID.
'OUTLET'
For Pronto Only. Optional. This should be a designation of the product as offered via the retailer's outlet distribution. This field should be left blank for all non-outlet products. All entries should be lowercase with a "yes" value.
'CURRENCY'
We only support US retailers who sell products for US Dollars. USD is the only option for this field.
'AUTHOR'
Optional, but recommended if selling a book. Enter name of author.
'ARTIST'
The artist or designer that created the work.
Example: Vincent Van Gogh
'MATERIAL'
The material the item is made out of. Required for Apparel products on Google Product Search.
Example: Leather
'STYLE'
The style of a product or the architectural style of a property. For property, appropriate values include: Cape Cod, Colonial, Craftsman, Gothic, Prairie, Ranch, Split Level, Tudor, and Victorian Queen Anne.
Example: Colonial
'MEMORY'
For Amazon Product Search. Recommended if selling a product which has memory capacity (PDAs, iPods, Computers, etc). Format for this field is number and unit.
Examples:128MB, 512 MB, 30 GB
'PROCESSOR SPEED'
For Amazon Product Search. Recommended if selling a computer. Format for this field is number and unit.
Examples:1.67 GHz, 2.0 GHz, 2.16GHz
'OPERATING SYSTEM'
For Amazon Product Search. The operating system a computer is running.
'DISPLAY TYPE'
For Amazon Product Search. The type of display on the television or monitor.
Example: LCD
'HEIGHT'
The height of the item. Format should be a number and unit.
Example: 48 inches
'LENGTH'
The length of the item. Format should be a number and unit.
Example: 48 inches
'WIDTH'
The width of the item. Format should be a number and unit.
Example: 48 inches
'YEAR'
The model year, or year the item was built. Use four digits, e.g. “2004”.
'PRODUCT TYPE'
Provide an ordered list of nouns describing the type of product. These nouns are generally the lowest levels of hierarchy in your taxonomy.Use a comma to separate them. e.g. "dress", "tent, dome tent".
'QUANTITY'
If your item is of limited availability, enter the number remaining in stock. If left blank, SingleFeed will enter the default value of '99'.
'SUBSCRIPTION DURATION'
For Pricegrabber Only. For magazines and other subscriptions; enter the duration in months.
'FREQUENCY'
For Pricegrabber Only. For magazines and other subscriptions; enter the frequency: weekly, monthly, etc.
'ISSUES'
For Pricegrabber Only. For magazines and other subscriptions; enter the number of issues within the subscription.
'EAN'
European Article Number. If the product originates from Europe, fill in the correct EAN. EANs are usually 13 digits long.
'Amazon Browse Node'
For Amazon Product Search. Typically only needed if Amazon places your products in incorrect categories. Use Amazon's Browse Tree Guide (BTG) to identify the most relevant browse node ID for each product.
'Occasion'
Indicates the occasion or circumstance associated with the Grocery and Gourmet item.
'Cuisine'
Indicates the location of origin associated with the Grocery and Gourmet item. Used for Amazon Product Ads
'Specialty'
Indicates any specialty designations for the product in Grocery and Gourmet. Used for Amazon Product Ads. 50 character max.
Example: gluten-free, low-carb, vegan, kosher.
'Alt Image 1' etc.
Used to send alternative images. Field headers should be named 'Alt Image 1', 'Alt Image 2', 'Alt Image 3' etc. (i.e. not just 'Alt Image') Each field supports one image URL. The URL must comply to the regular image URL requirements. Can be used in place of the Google Alt Images field. I.e. instead of having several image URLs in that field, you can include them in separate fields and SingleFeed will combine them for Google. These fields may be used with other engines than Google if they support alternative images.
'Sale Price Effective Date' & 'Sale Price End Date'
Can be used to specify the start and end of a sale/deal on Bing Shopping (optional).
Example (use UTC format):
YYYY-MM-DDThh:mm
(eg 1997-07-16T19:20)
Promo Details URL
Used to provide a special URL for a sale / deal / promotional item. I.e. if you have a page specifically designed for the sale period of a product, you can use this field to send it to engines that support the field (Bing Deals, for example)
Shopping Engine Categories
These fields are filled by SingleFeed during our Categorization Process. We recommend that you leave these fields blank in the data feed you send to us.You can review engine categories by downloading your SingleFeed file from the Products page of your account, but you cannot edit them (changes made by you and uploaded into our system will be ignored). If you have questions about engines categories, please contact us at support@singlefeed.com.
'BECOME CATEGORY'
'NEXTAG CATEGORY'
'PRICEGRABBER CATEGORY'
'PRONTO CATEGORY'
'SHOPPING.COM CATEGORY'
'SHOPZILLA CATEGORY'
'SMARTER CATEGORY'
'SORTPRICE CATEGORY'
'LIKE.COM CATEGORY'
'SHOP.COM CATEGORY'
'GOOGLE CATEGORY'
'BING SHOPPING CATEGORY'
'AMAZON PRODUCT ADS CATEGORY'
Each comparison shopping engine has its own categorization. SingleFeed will manually map your products for you and enter values in this field. Values you provide will not be accepted. SingleFeed will require 7 business days to categorize your products for all of the engines.
Replacement Fields
URL Replacement Fields:
We recommend using one of our reporting solutions (available in your SingleFeed Account Center). However, if you have engine specific tracking codes embedded in your URLs (and not simply appended at the end) you can provide your product URL, with engine specific tracking codes, in these fields.
'BECOME URL REPLACEMENT'
'BUYSAFE URL REPLACEMENT'
'CASHBACK URL REPLACEMENT'
'GOOGLE BASE URL REPLACEMENT'
'LIKE.COM URL REPLACEMENT'
'NEXTAG URL REPLACEMENT'
'PRICEGRABBER URL REPLACEMENT'
'PRONTO URL REPLACEMENT'
'SHOP.COM URL REPLACEMENT'
'SHOPPING.COM URL REPLACEMENT'
'SHOPZILLA URL REPLACEMENT'
'SMARTER URL REPLACEMENT'
'SORTPRICE URL REPLACEMENT'
'THEFIND URL REPLACEMENT'
'GIFTS URL REPLACEMENT'
'FIND GIFT URL REPLACEMENT'
'PRICE.COM URL REPLACEMENT'
'ONEWAYSHOPPING URL REPLACEMENT'
Other Replacement Fields:
'GOOGLE BASE PRODUCT NAME REPLACEMENT'
If used, this value will replace your regular product name, but only for your Google feed. For A/B testing purposes.
'GOOGLE BASE PRODUCT DESCRIPTION REPLACEMENT’
If used, this value will replace your regular product description, but only for your Google feed. For A/B testing purposes.
'SHOPZILLA PRODUCT NAME REPLACEMENT'
If used, this value will replace your regular product name, but only for your Shopzilla feed. For A/B testing purposes.
'SHOPZILLA PRODUCT DESCRIPTION REPLACEMENT’
If used, this value will replace your regular product description, but only for your Shopzilla feed. For A/B testing purposes.
"Include" Fields
These fields are used to suppress products from being sent to engines. Please read more about using Include Fields here.
Note: Unlike regular fields, Include Field names are case-sensitive. Please download your SingleFeed file from the Products page of your account to ensure you have the correctly formatted field header names.
'Include Amazon Marketplace'
If you have enabled Amazon Marketplace within SingleFeed but do not want to deliver a specific product to Amazon Marketplace, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE GOOGLE BASE'
If you have enabled Google Base within SingleFeed but do not want to deliver a specific product to Google Base, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE AMAZON'
If you have enabled Amazon Product Search within SingleFeed but do not want to deliver a specific product to Amazon Product Search, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE BECOME'
If you have enabled Become within SingleFeed but do not want to deliver a specific product to Become, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE BUYSAFE'
If you have enabled buySAFE within SingleFeed but do not want to deliver a specific product to buySAFE, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE LIKE.COM'
If you have enabled Like.com within SingleFeed but do not want to deliver a specific product to Like.com, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE NEXTAG'
If you have enabled Nextag within SingleFeed but do not want to deliver a specific product to Nextag, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE POWERREVIEW'
If you have enabled Power Reviews within SingleFeed but do not want to deliver a specific product to Power Reviews, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE PRICEGRABBER'
If you have enabled Pricegrabber within SingleFeed but do not want to deliver a specific product to Pricegrabber, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE PRONTO'
If you have enabled Pronto within SingleFeed but do not want to deliver a specific product to Pronto, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE SHOP.COM'
If you have enabled Shop.com within SingleFeed but do not want to deliver a specific product to Shop.com, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE SHOPPING.COM'
If you have enabled Shopping.com within SingleFeed but do not want to deliver a specific product to Shopping.com, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE SHOPZILLA'
If you have enabled Shopzilla within SingleFeed but do not want to deliver a specific product to Shopzilla, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE SMARTER'
If you have enabled Smarter within SingleFeed but do not want to deliver a specific product to Smarter, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE SORTPRICE'
If you have enabled Sortprice within SingleFeed but do not want to deliver a specific product to Sortprice, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE THEFIND'
If you have enabled The Find within SingleFeed but do not want to deliver a specific product to The Find, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE BING SHOPPING'
If you have enabled Bing Shopping within SingleFeed but do not want to deliver a specific product to Bing Shopping, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE FIND GIFT'
If you have enabled Find Gift within SingleFeed but do not want to deliver a specific product to Bing Shopping, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE PRICE.COM'
If you have enabled Price.com within SingleFeed but do not want to deliver a specific product to Bing Shopping, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
'INCLUDE ONEWAYSHOPPING'
If you have enabled OneWayShopping within SingleFeed but do not want to deliver a specific product to Bing Shopping, enter 'N' in this field. If left blank, SingleFeed will default to 'Y'.
Product Level Bid Fields
We recommend using these fields for the available engines to set product level bids in these fields. These fields are optional and if left blank or omitted from your feed the listings will assume the default category bids for each engine. These fields accept a numerical value with up to 2 decimal places. Example: 0.45. Don't use a '$'.
'Become Bid'
'Gifts Bid'
'Nextag Bid'
'Pricegrabber Bid' - note that SingleFeed currently supports Absolute bid types for this engine
'Pronto Bid'
'Shopzilla Bid'
'Smarter Bid'