How can I edit the cookie value before writing it into a data source??

[anton_grube]

Hi, i would like to edit a Cookie value before I use it as a data source. Is that possible? I tried to use the extension: "Set Data Values" to write the value into a new data source with that JS script: "uneditedCookieValue.substr(13,5);" But at the end the data source was empty! Can anyone help me? Best regards, Anton

[dan_george · Accepted solution]

Hi Anton, You should probably contact your AM so that we can check out the configuration that you have. Speaking at a high level, all 1st party cookies are automatically read and injected/added as part of the utag_data object. If you want to edit the value, you should create a new data source to contain the edited value and map that new data source to the tag. Within the Set Data Values extension you can reference the cookie using b["cp.cookieName"]. For a better example... Say you have a cookie called "myCookie" and you want to parse out part of the value. First, create a new Data Source called "myNewVariable". Next, add a Set Data Values extension that sets "myNewVariable" to "JS Code" with a value of "b['cp.myAffilate'].substr(13,5)". Then map "myNewVariable" to the tag needed the parsed data. This should do the trick.