# Remove Security From Watchlist by ID ## Overview This DELETE endpoint enables you to remove a particular security from a particular watchlist by providing the security's ID in the request's path. There are six required parameters that must be provided in the request: 1. **Et-App-Key** (header). This is the unique key of your app that identifies your app when communicating with our service. Contact your administrator to get this key. 2. **Authorization** (header). This is the authorization token from the very first [token request](/rest-api/trading-api/authentication/requesting-tokens.md). 3. **API version** (path). Unless necessary, leave it at "1.0". 4. **watchlistID** (path). This is the ID of the watchlist from which a security must be removed. 5. **userID** (path). This is the ID of the user whose particular watchlist should have the specified security removed. 6. **securityID** (path). This is the ID of the security that must be removed from a particular watchlist. You can fetch the ID of a particular security with [this method](/rest-api/trading-api/securities/get-securitys-info-by-ticker.md). The final template for this request is as follows: ``` DELETE apiURL/v1.0/users/{userID}/watchlists/{watchlistID}/securities/{securityID} ``` ## Response In response to this API request, you'll receive the updated watchlist with the specified security removed. In this example we've removed the Apple stock from a tech-oriented watchlist. ```javascript { "Id": 17973, "Name": "My Stocks", "Type": "UserList", "CreateDate": "2019-01-14T12:27:38.52Z", "ModifyDate": "2019-01-14T12:27:38.52Z", "ReadOnly": false, "SecurityList": [ { "Id": 5, "Symbol": "GOOG", "Description": "Alphabet Inc.", "Exchange": "XNAS", "Currency": "USD", "AddedDate": "2012-11-29T16:05:43.993Z", "ModifyDate": "2017-12-14T08:00:10.1826129Z", "Type": "CommonStock", "Source": 0, "ParentId": -1, "OptionType": "Undefined", "ExpirationType": "Undefined", "ExpirationDate": "0001-01-01T00:00:00Z", "StrikePrice": 0, "SeriesId": -1, "ContractSize": 1, "Precision": 2, "VolumePrecision": 0, "TickSize": 0.01, "MarginRate": 0 }, { "Id": 6, "Symbol": "MSFT", "Description": "Microsoft Corporation", "Exchange": "XNAS", "Currency": "USD", "AddedDate": "2012-11-29T16:05:43.997Z", "ModifyDate": "2017-12-14T08:00:13.5446736Z", "Type": "CommonStock", "Source": 0, "ParentId": -1, "OptionType": "Undefined", "ExpirationType": "Undefined", "ExpirationDate": "0001-01-01T00:00:00Z", "StrikePrice": 0, "SeriesId": -1, "ContractSize": 1, "Precision": 2, "VolumePrecision": 0, "TickSize": 0.01, "MarginRate": 0 }, { "Id": 2829, "Symbol": "FB", "Description": "Facebook, Inc.", "Exchange": "XNAS", "Currency": "USD", "AddedDate": "2012-11-29T16:08:15.947Z", "ModifyDate": "2017-12-14T08:00:09.171586Z", "Type": "CommonStock", "Source": 0, "ParentId": -1, "OptionType": "Undefined", "ExpirationType": "Undefined", "ExpirationDate": "0001-01-01T00:00:00Z", "StrikePrice": 0, "SeriesId": -1, "ContractSize": 1, "Precision": 2, "VolumePrecision": 0, "TickSize": 0.01, "MarginRate": 0 }, ``` ### Watchlist Parameters | Parameter | Description | | ------------ | ----------------------------------------------------------------------------------------------------------------------------- | | Id | This is the internal identifier of the watchlist in Autoshares Trader. | | Name | This is the name of the watchlist in Autoshares Trader. | | Type | This is the type of the watchlist. It could either be a user-created watchlist or a default watchlist provided by the system. | | CreateDate | This is the date on which the watchlist was created. | | ModifyDate | This is the date on which the watchlist was last modified. | | ReadOnly | This field indicates if the watchlist is modifiable. | | SecurityList | This is a collection of securities in the watchlist. | ## Common Mistakes Here are some of the common mistakes that developers make when attempting to remove a particular security from a watchlist. ### Failing to Specify the Et-App-Key Parameter If you specify the wrong Et-App-Key parameter or fail to include it in the header altogether, you'll get the following error: ```javascript { "error": "Application key is not defined or does not exist" } ``` ### Specifying the Security's Ticker Symbol Instead of its Internal ID Another common mistake when making this API request is specifying the ticker symbol of the to-be-added security instead of its internal ID — for this purpose, there's a [separate API request](/rest-api/trading-api/watchlists/remove-security-from-watchlist-by-ticker.md). If you specify the security's ticker symbol in this request, you'll receive the 400 status code and the following error message: ```javascript { "Message": "The request is invalid." } ``` The following article covers the syntax for this API request in detail. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://api-documentation.autoshares.dev/rest-api/trading-api/watchlists/remove-security-from-watchlist-by-id.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.