eBay Trading APIVersion 1039

AddToWatchList

This call is used to add one or more items to a user's My eBay Watch list. The My eBay Watch list can be viewed on the user's My eBay page, or the list can be retrieved using GetMyeBayBuying.

Note: Only active listings can be added to a Watch list. If a user was watching an item when the listing ended, that item will be added back to the user's Watch list if the item is relisted.

Usage Details

Call AddToWatchList with one or more ItemID fields. Each active item is added to the user's Watch list.

The call response contains two fields, WatchListCount and WatchListMaximum. You can use these values to determine how many items are currently being watched, and how many available spaces are left in the user's Watch list.

Testing AddToWatchList

Test AddToWatchList in the Sandbox:

  1. Find an item on the My eBay Sandbox page (http://sandbox.ebay.com) and get the ItemID value.
  2. Make a call to AddToWatchList on behalf of a test user, adding the Sandbox item to the user's My eBay Watch list.
  3. Verify that the item is in the Watch list in one of two ways:
    • Sign-in to the Sandbox as the test user and look for the item in the Watch list on the My eBay page.
    • Use GetMyeBayBuying to retrieve the user's Watch list, and verify that the item is included in the list.

Related Information

See also the reference documentation for these calls:



Input

See also Samples.

The box below lists all fields that could be included in the call request. To learn more about an individual field or its type, click its name in the box (or scroll down to find it in the table below the box).

See also the Deprecated Objects link above. Fields presented in this color are deprecated, and fields presented in this color are (or soon will be) non-operational.

The XML prototype does not include requester credentials. This is a documentation limitation only (see Standard Requester Credentials for Making Calls).

<?xml version="1.0" encoding="utf-8"?>
<AddToWatchListRequest xmlns="urn:ebay:apis:eBLBaseComponents">
  <!-- Call-specific Input Fields -->
  <ItemID> ItemIDType (string) </ItemID>
  <!-- ... more ItemID values allowed here ... -->
  <VariationKey> VariationKeyType
    <ItemID> ItemIDType (string) </ItemID>
    <VariationSpecifics> NameValueListArrayType
      <NameValueList> NameValueListType
        <Name> string </Name>
        <Value> string </Value>
        <!-- ... more Value values allowed here ... -->
      </NameValueList>
      <!-- ... more NameValueList nodes allowed here ... -->
    </VariationSpecifics>
  </VariationKey>
  <!-- ... more VariationKey nodes allowed here ... -->
  <!-- Standard Input Fields -->
  <ErrorLanguage> string </ErrorLanguage>
  <MessageID> string </MessageID>
  <Version> string </Version>
  <WarningLevel> WarningLevelCodeType </WarningLevel>
</AddToWatchListRequest>
Argument Type Occurrence Meaning
Call-specific Input Fields [Jump to standard fields]
ItemID ItemIDType (string) Optional,
repeatable: [0..*]
The ItemID of the item that is to be added to the eBay user's Watch List. The item must be a currently active item, and the total number of items in the user's Watch List (after the items in the request have been added) cannot exceed the maximum allowed number of Watch List items. One or more ItemID fields can be specified. A separate error node will be returned for each item that was not successfully added to the Watch List.

The user must use either one or more ItemID values or one or more VariationKey containers, but the user may not use both of these entities in the same call.
Max length: 19 (Note: Item IDs are usually 9 to 12 digits).
VariationKey VariationKeyType Conditional,
repeatable: [0..*]
This container is used to specify one or more item variations in a multi-variation, fixed-price listing that you want to add to the Watch List. The listing is identified through the ItemID value and each item variation existing within that listing is identified through a VariationSpecifics.NameValueList container.

The user must use either one or more ItemID values or one or more VariationKey containers, but the user may not use both of these entities in the same call.
VariationKey.ItemID ItemIDType (string) Conditional The unique identifier of the fixed-price listing whose variation(s) should be added to or removed from the watch list.
Max length: 19 (Note: The eBay database specifies 38. Currently, Item IDs are usually 9 to 12 digits).
VariationKey
  .VariationSpecifics
NameValueListArrayType Conditional This container is used to identify one or more item variations within the multiple-variation isting. If the specified name-value pairs do not match any item variation, the call behaves as if no variations were specified.
VariationKey
  .VariationSpecifics
  .NameValueList
NameValueListType Conditional,
repeatable: [0..*]
For the AddItem family of calls: Contains the name and value(s) for an Item Specific. Only required when the ItemSpecifics container is specified.

For the AddFixedPriceItem family of calls: The same NameValueList schema is used for the ItemSpecifics node, the VariationSpecifics node, and the VariationSpecifcsSet node.

If the listing has varations, any name that you use in the VariationSpecifics and VariationSpecificsSet nodes can't be used in the ItemSpecifics node.
When you list with Item Variations:
  • Specify shared Item Specifics (e.g., Brand) in the ItemSpecifics node.
  • Specify up to five VariationSpecifics in each Variation node.
  • Specify all applicable names with all their supported values in the VariationSpecificSet node.
See the Variation sample in the AddFixedPriceItem call reference for examples.

For PlaceOffer: Required if the item being purchased includes Item Variations.

For more details, see Requiring Product Identifiers Mandate
VariationKey
  .VariationSpecifics
  .NameValueList.Name
string Conditional Depending on the call and context, this value is either a name of an Item/Category/Variation Specific, a Parts Compatibility name, or a product identifier type.

For the AddItem and AddFixedPriceItem families of calls: In the ProductListingDetails.NameValueList (single-variation listing) and VariationProductListingDetails.NameValueList (multiple-variation listing) context, this value is the product identifier type, such as ISBN or UPC. Product identifier types that are supported/required for a specific category can be retrieved using the GetCategorySpecifics call.

For the AddItem and AddFixedPriceItem families of calls: In the Item.ItemSpecifics context, this can be any name that the seller wants to use. However, to help buyers find items more easily, it is a good idea to try to use a recommended name when possible (see GetCategorySpecifics). You can't specify the same name twice within the same listing.

For the AddFixedPriceItem family of calls: In the VariationSpecifics context, this can be any name that the seller wants to use, unless the VariationsEnabled flag is false for the name in the GetCategorySpecifics response. For example, for some categories eBay may recommend that you only use "Brand" as a shared name at the Item level, not in variations.

For the AddFixedPriceItem family of calls: In the Compatibility.NameValueList context, this value is a motor vehicle aspect such as Year, Make, and Model. A Compatibility.NameValueList container is applicable for motor vehicle parts and accessories listings.

For GetCategorySpecifics: This is a recommended (popular) name to use for items in the specified category (e.g., "Brand" might be recommended, not "Manufacturer").

For PlaceOffer: Required if the item being purchased includes Item Variations.

Note: If Brand and MPN (Manufacturer Part Number) are being used to identify product variations in a multiple-variation listing, the Brand must be specified at the item level (ItemSpecifics container) and the MPN for each product variation must be specified at the variation level (VariationSpecifics container). The Brand name must be the same for all variations within a single listing.
Max length: 65.
VariationKey
  .VariationSpecifics
  .NameValueList.Value
string Conditional,
repeatable: [0..*]
Depending on the call and context, this value is either the value of an Item/Category/Variation Specific, a Parts Compatibility value, or a product identifier.

For the AddItem family of calls: If you specify multiple values for Item Specifics, eBay only stores the first one, unless GetCategorySpecifics indicates that the corresponding name supports multiple values.

For the AddItem and AddFixedPriceItem families of calls: In the ProductListingDetails.NameValueList (single-variation listing) and VariationProductListingDetails.NameValueList (multiple-variation listing) context, this value is the product identifier, such as ISBN or UPC. Product identifier types that are supported/required for a specific category can be retrieved using the GetCategorySpecifics call.

For the AddFixedPriceItem family of calls: If you specify multiple values for Item Specifics or Variation Specifics, eBay only stores the first one, unless GetCategorySpecifics indicates that the corresponding name supports multiple values.

In VariationSpecificSet, you typically specify multiple Value fields for each name. For example, if Name = Size, you would specify all size values that you wan to offer in the listing.

For the Compatibility.NameValueList context, this is the corresponding value of a motor vehicle aspect such as Year, Make, and Model. A Compatibility.NameValueList container is applicable for motor vehicle parts and accessories listings.

For GetCategorySpecifics: The most highly recommended values are returned first. For these calls, Value is only returned when recommended values are available.

For PlaceOffer: Required if the item being purchased includes Item Variations.

Max length: 50.
Standard Input Fields  
ErrorLanguage string Optional Use ErrorLanguage to return error strings for the call in a different language from the language commonly associated with the site that the requesting user is registered with. Specify the standard RFC 3066 language identification tag (e.g., en_US).

ID Country
en_AU Australia
de_AT Austria
nl_BE Belgium (Dutch)
fr_BE Belgium (French)
en_CA Canada
fr_CA Canada (French)
zh_CN China
fr_FR France
de_DE Germany
zh_HK Hong Kong
en_IN India
en_IE Ireland
it_IT Italy
nl_NL Netherlands
en_SG Singapore
es_ES Spain
de_CH Switzerland
en_GB United Kingdom
en_US United States

See Tags for the Identification of Languages.

MessageID string Optional Most Trading API calls support a MessageID element in the request and a CorrelationID element in the response. If you pass in a MessageID in a request, the same value will be returned in the CorrelationID field in the response. Pairing these values can help you track and confirm that a response is returned for every request and to match specific responses to specific requests. If you do not pass a MessageID value in the request, CorrelationID is not returned.

Note: GetCategories is designed to retrieve very large sets of metadata that change once a day or less often. To improve performance, these calls return cached responses when you request all available data (with no filters). When this occurs, the MessageID and CorrelationID fields aren't applicable. However, if you specify an input filter to reduce the amount of data returned, the calls retrieve the latest data (not cached). When this occurs, MessageID and CorrelationID are applicable.
Version string Conditional The version number of the API code that you are programming against (e.g., 859). The version you specify for a call has these basic effects:
  • It indicates the version of the code lists and other data that eBay should use to process your request.
  • It indicates the schema version you are using.
You need to use a version that is greater than or equal to the lowest supported version.
For the SOAP API: If you are using the SOAP API, this field is required. Specify the version of the WSDL your application is using.

For the XML API: If you are using the XML API, this field has no effect. Instead, specify the version in the X-EBAY-API-COMPATIBILITY-LEVEL HTTP header. (If you specify Version in the body of an XML API request and it is different from the value in the HTTP header, eBay returns an informational warning that the value in the HTTP header was used instead.)

See:
    Routing the Request (Gateway URLs)
    eBay Schema Versioning Strategy
    Lowest Supported Version

WarningLevel WarningLevelCodeType Optional Controls whether or not to return warnings when the application passes unrecognized or deprecated elements in a request.

An unrecognized element is one that is not defined in any supported version of the schema. Schema element names are case-sensitive, so using WarningLevel can also help you remove any potential hidden bugs within your application due to incorrect case or spelling in field names before you put your application into the Production environment.

WarningLevel only validates elements; it doesn't validate XML attributes. It also doesn't control warnings related to user-entered strings or numbers, or warnings for logical errors.

We recommend that you only use this during development and debugging. Do not use this in requests performed in the Production environment.

Applicable values:

High
(in) The WarningLevel value is set to High if the user wishes to receive warnings when the application passes unrecognized or deprecated elements in an API call request. Setting the WarningLevel value to High is not recommended in a production environment. Instead, it should only be used during the development/debugging stage.
Low
(in) The WarningLevel value is set to Low if the user does not wish to receive warnings when the application passes unrecognized or deprecated elements in an API call request. This is the default value if WarningLevel is not specified in the call request.

See Warning Level.



Output

See also Samples.

The box below lists all fields that might be returned in the response. To learn more about an individual field or its type, click its name in the box (or scroll down to find it in the table below the box).

See also the Deprecated Objects link above. Fields presented in this color are deprecated, and fields presented in this color are not returned (or soon will not be returned) or are not operational (or soon will be non-operational).

<?xml version="1.0" encoding="utf-8"?>
<AddToWatchListResponse xmlns="urn:ebay:apis:eBLBaseComponents">
  <!-- Call-specific Output Fields -->
  <WatchListCount> int </WatchListCount>
  <WatchListMaximum> int </WatchListMaximum>
  <!-- Standard Output Fields -->
  <Ack> AckCodeType </Ack>
  <Build> string </Build>
  <CorrelationID> string </CorrelationID>
  <Errors> ErrorType
    <ErrorClassification> ErrorClassificationCodeType </ErrorClassification>
    <ErrorCode> token </ErrorCode>
    <ErrorParameters ParamID="string"> ErrorParameterType
      <Value> string </Value>
    </ErrorParameters>
    <!-- ... more ErrorParameters nodes allowed here ... -->
    <LongMessage> string </LongMessage>
    <SeverityCode> SeverityCodeType </SeverityCode>
    <ShortMessage> string </ShortMessage>
  </Errors>
  <!-- ... more Errors nodes allowed here ... -->
  <HardExpirationWarning> string </HardExpirationWarning>
  <Timestamp> dateTime </Timestamp>
  <Version> string </Version>
</AddToWatchListResponse>
Return Value Type Occurrence Meaning
Call-specific Output Fields [Jump to standard fields]
WatchListCount int Always This integer value indicates the total number of items in the user's Watch List (after those specified in the call request have been successfully added).
WatchListMaximum int Always This integer value indicates the maximum number of items allowed in a user's Watch List. This value can vary by site and is subject to change. Currently on the US site, up to 200 items can be on the user's Watch List at any given time.
Standard Output Fields  
Ack AckCodeType Always A token representing the application-level acknowledgement code that indicates the response status (e.g., success). The AckCodeType list specifies the possible values for the Ack field.

Applicable values:

CustomCode
(out) Reserved for internal or future use.
Failure
(out) This value indicates that the call request processing failed.
Success
(out) This value indicates that the call request was processed successfully without any issues.
Warning
(out) This value indicates that the call request was successful, but processing was not without any issues. These issues can be checked in the Errors container, that will also be returned when one or more known issues occur with the call request.

(Not all values in AckCodeType apply to this field.)

Code so that your app gracefully handles any future changes to this list.
Build string Always This refers to the specific software build that eBay used when processing the request and generating the response. This includes the version number plus additional information. eBay Developer Support may request the build information when helping you resolve technical issues.
CorrelationID string Conditionally Most Trading API calls support a MessageID element in the request and a CorrelationID element in the response. If you pass in a MessageID in a request, the same value will be returned in the CorrelationID field in the response. Pairing these values can help you track and confirm that a response is returned for every request and to match specific responses to specific requests. If you do not pass a MessageID value in the request, CorrelationID is not returned.

Note: GetCategories is designed to retrieve very large sets of metadata that change once a day or less often. To improve performance, these calls return cached responses when you request all available data (with no filters). When this occurs, the MessageID and CorrelationID fields aren't applicable. However, if you specify an input filter to reduce the amount of data returned, the calls retrieve the latest data (not cached). When this occurs, MessageID and CorrelationID are applicable.
Errors ErrorType Conditionally,
repeatable: [0..*]
A list of application-level errors (if any) that occurred when eBay processed the request.

See Error Handling.

Errors.ErrorClassification ErrorClassificationCodeType Conditionally API errors are divided between two classes: system errors and request errors.

Applicable values:

CustomCode
(out) Reserved for internal or future use.
RequestError
(out) An error has occurred either as a result of a problem in the sending application or because the application's end-user has attempted to submit invalid data (or missing data). In these cases, do not retry the request. The problem must be corrected before the request can be made again. If the problem is due to something in the application (such as a missing required field), the application must be changed. If the problem is a result of end-user data, the application must alert the end-user to the problem and provide the means for the end-user to correct the data. Once the problem in the application or data is resolved, resend the request to eBay with the corrected data.
SystemError
(out) Indicates that an error has occurred on the eBay system side, such as a database or server down. An application can retry the request as-is a reasonable number of times (eBay recommends twice). If the error persists, contact Developer Technical Support. Once the problem has been resolved, the request may be resent in its original form.

Code so that your app gracefully handles any future changes to this list.
Errors.ErrorCode token Conditionally A unique code that identifies the particular error condition that occurred. Your application can use error codes as identifiers in your customized error-handling algorithms. See the "Errors by Number" document.
Errors.ErrorParameters ErrorParameterType Conditionally,
repeatable: [0..*]
This optional element carries a list of context-specific error variables that indicate details about the error condition. These are useful when multiple instances of ErrorType are returned.
Errors.ErrorParameters
  [ attribute ParamID ]
string Conditionally This optional element carries a list of context-specific error variables that indicate details about the error condition. These are useful when multiple instances of ErrorType are returned.
Errors.ErrorParameters.Value string Conditionally This is the value of the request parameter noted in the ParamID attribute. So, if the ParamID value was ItemID, the value in this field would be the actual value of that ItemID.
Errors.LongMessage string Conditionally A more detailed description of the condition that raised the error.
Errors.SeverityCode SeverityCodeType Conditionally Indicates whether the error is a severe error (causing the request to fail) or an informational error (a warning) that should be communicated to the user.

Applicable values:

CustomCode
(out) Reserved for internal or future use.
Error
(out) The request that triggered the error was not processed successfully. When a serious application-level error occurs, the error is returned instead of the business data.

If the source of the problem is within the application (such as a missing required element), change the application before you retry the request.
  • If the problem is due to end-user input data, please alert the end-user to the problem and provide the means for them to correct the data. Once the problem in the application or data is resolved, you can attempt to re-send the request to eBay.
  • If the source of the problem is on eBay's side, An application can retry the request as-is a reasonable number of times (eBay recommends twice). If the error persists, contact Developer Technical Support. Once the problem has been resolved, the request may be resent in its original form.


See the Compatible Application Check section of the eBay Features Guide for more information.
Warning
(out) The request was processed successfully, but something occurred that may affect your application or the user. For example, eBay may have changed a value the user sent in. In this case, eBay returns a normal, successful response and also returns the warning.

When a warning occurs, the error is returned in addition to the business data. In this case, you do not need to retry the request (as the original request was successful). However, depending on the cause or nature of the warning, you might need to contact either the end user or eBay to effect a long term solution to the problem to prevent it from reoccurring in the future.

Code so that your app gracefully handles any future changes to this list.
Errors.ShortMessage string Conditionally A brief description of the condition that raised the error.
HardExpirationWarning string Conditionally Expiration date of the user's authentication token. Only returned within the 7-day period prior to a token's expiration. To ensure that user authentication tokens are secure and to help avoid a user's token being compromised, tokens have a limited life span. A token is only valid for a period of time (set by eBay). After this amount of time has passed, the token expires and must be replaced with a new token.
Timestamp dateTime Always This value represents the date and time when eBay processed the request. The time zone of this value is GMT and the format is the ISO 8601 date and time format (YYYY-MM-DDTHH:MM:SS.SSSZ). See the Time Values section in the eBay Features Guide for information about this time format and converting to and from the GMT time zone.

Note: GetCategories and other Trading API calls are designed to retrieve very large sets of metadata that change once a day or less often. To improve performance, these calls return cached responses when you request all available data (with no filters). When this occurs, this time value reflects the time the cached response was created. Thus, this value is not necessarily when the request was processed. However, if you specify an input filter to reduce the amount of data returned, the calls retrieve the latest data (not cached). When this occurs, this time value does reflect when the request was processed.
Version string Always The version of the response payload schema. Indicates the version of the schema that eBay used to process the request. See the Standard Data for All Calls section in the eBay Features Guide for information on using the response version when troubleshooting CustomCode values that appear in the response.



Detail Controls


DetailLevel

This call does not support varying Detail Levels. You do not need to pass DetailLevel in the request.



Samples

New to making API calls? Please see Making a Call.

Note: Some item IDs, user IDs, or other data in these samples might no longer be active on eBay. If necessary, you can substitute current eBay data in your requests.

Sample: Basic Call

Adds an item (or items) to a buyers Watch List.

Description

Using the Finding API, Bountiful Buyer has found several Harry Potter books that she is interested in buying. Magical Bookseller's book is of particular interest, and Bountiful Buyer wants to keep an eye on the auction's progress.

Using AddToWatchList, Bountiful Buyer adds the Harry Potter book to her Watch List. The call returns the current number of items on her Watch List, along with the maximum number of items that she can watch at a time. Subtract the WatchListCount value from WatchListMaximum to calculate how many additional watches Bountiful Buyer can add to her watch list.

Input

XML format.

<?xml version="1.0" encoding="utf-8"?>
<AddToWatchListRequest xmlns="urn:ebay:apis:eBLBaseComponents">
  <RequesterCredentials>
    <eBayAuthToken>ABC...123</eBayAuthToken>
  </RequesterCredentials>
  <WarningLevel>High</WarningLevel>
  <ItemID>110043671232</ItemID>
</AddToWatchListRequest>

Output

XML format.
<AddToWatchListResponse xmlns="urn:ebay:apis:eBLBaseComponents">
  <Timestamp>2016-02-16T19:13:12.411Z</Timestamp>
  <Ack>Success</Ack>
  <Version>967</Version>
  <Build>E967_CORE_BUNDLED_10639415_R1</Build>
  <WatchListCount>6</WatchListCount>
  <WatchListMaximum>200</WatchListMaximum>
</AddToWatchListResponse>



Change History

Change Date Description
615
2008-04-29
  • VariationKey (added): Adds a variation from a multi-variation listing to the user's watch list.