Change value of SC_ANALYTICS_GLOBAL_COOKIE to false

Question

Can we override SC_ANALYTICS_GLOBAL_COOKIE through code? Meaning, in my configuration file I set to true, through code I want to set it to false for a particular user. Is it possible?

Answer 1

I wouldn't recommend overwriting cookies that are set by the platform generally. I usually recommend make your own which you have full control over.

Cookie editing is limited by domains. You couldn't edit it cross domain. Quote from mozilla when talking about cookies:

Additionally, restrictions to a specific domain and path can be set, limiting where the cookie is sent.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies

For this cookie in particular I recommend using sitecore out the box approach for this first

https://doc.sitecore.com/developers/91/sitecore-experience-platform/en/visitor-identification-using-the-robot-detection-component.html

Run the following in javascript:

Tracker.Current.Session.SetClassification(925, 925, true);

which will disable the cookie.

Tracker.Current.Session.SetClassification(0, 0, true);

this enables the cookie.

If this isn't what you want, you can manipulate the cookie via c# by requesting the cookie first. I stress sitecore SetClassification is safer option as it may do more then just set the cookie.

HttpCookie cookie = Request.Cookies["SC_ANALYTICS_GLOBAL_COOKIE"];

Check if it's null then update your values:

if (cookie == null)
{
    // no cookie found, create it
    cookie = new HttpCookie("SC_ANALYTICS_GLOBAL_COOKIE");
    cookie.Values["yourValueName"] = "1";
    cookie.Values["yourValueName2"] = "0";
}else{
    // update existing cookie values
    cookie.Values["relevanValueToUpdate"] = true;
}

you can even change the expiry.

// update the expiration timestamp
cookie.Expires = DateTime.UtcNow.AddDays(30);

finally.

// overwrite the cookie
Response.Cookies.Add(cookie);

code sample from: https://stackoverflow.com/questions/22070840/change-a-cookie-value-of-a-cookie-that-already-exists