Custom code variables is not triggerring along with pagetag rule.

[kalaivaniL3]

i could not see my custom code not triggerring used along with pagetag variables set in template.

s.usePlugins = true;

s.doPlugins = function(s)
{
/* Desired code */
s.eVar2 = getPreviousValue(s.pageName,"gpv_Page");
s.campaign = getQueryParam('cid');
s.prop2= "fired";
}
//doplugins()
/* Plugin Section - Add plugin code here*/
/* Adobe Consulting Plugin: getPreviousValue v3.0 */
function getPreviousValue(v,c){var k=v,d=c;if("-v"===k)return{plugin:"getPreviousValue",version:"3.0"};var a=function(){if("undefined"!==typeof window.s_c_il)for(var c=0,b;c<window.s_c_il.length;c++)if(b=window.s_c_il[c],b._c&&"s_c"===b._c)return b}();"undefined"!==typeof a&&(a.contextData.getPreviousValue="3.0");window.cookieWrite=window.cookieWrite||function(c,b,f){if("string"===typeof c){var h=window.location.hostname,a=window.location.hostname.split(".").length-1;if(h&&!/^[0-9.]+$/.test(h)){a=2<a?a:2;var e=h.lastIndexOf(".");if(0<=e){for(;0<=e&&1<a;)e=h.lastIndexOf(".",e-1),a--;e=0<e?h.substring(e):h}}g=e;b="undefined"!==typeof b?""+b:"";if(f||""===b)if(""===b&&(f=-60),"number"===typeof f){var d=new Date;d.setTime(d.getTime()+6E4*f)}else d=f;return c&&(document.cookie=encodeURIComponent(c)+"="+encodeURIComponent(b)+"; path=/;"+(f?" expires="+d.toUTCString()+";":"")+(g?" domain="+g+";":""),"undefined"!==typeof cookieRead)?cookieRead(c)===b:!1}};window.cookieRead=window.cookieRead||function(c){if("string"===typeof c)c=encodeURIComponent(c);else return"";var b=" "+document.cookie,a=b.indexOf(" "+c+"="),d=0>a?a:b.indexOf(";",a);return(c=0>a?"":decodeURIComponent(b.substring(a+2+c.length,0>d?b.length:d)))?c:""};var l;d=d||"s_gpv";a=new Date;a.setTime(a.getTime()+18E5);window.cookieRead(d)&&(l=window.cookieRead(d));k?window.cookieWrite(d,k,a):window.cookieWrite(d,l,a);return l};
/******************************************** END CODE TO DEPLOY ********************************************/
/******************************************* BEGIN CODE TO DEPLOY *******************************************/
/* Adobe Consulting Plugin: getQueryParam v4.0.1 */
function getQueryParam(a,d,f){function n(g,c){c=c.split("?").join("&");c=c.split("#").join("&");var e=c.indexOf("&");if(g&&(-1<e||c.indexOf("=")>e)){e=c.substring(e+1);e=e.split("&");for(var h=0,p=e.length;h<p;h++){var l=e[h].split("="),q=l[1];if(l[0].toLowerCase()===g.toLowerCase())return decodeURIComponent(q||!0)}}return""}if("-v"===a)return{plugin:"getQueryParam",version:"4.0.1"};var b=function(){if("undefined"!==typeof window.s_c_il)for(var g=0,c;g<window.s_c_il.length;g++)if(c=window.s_c_il[g],c._c&&"s_c"===c._c)return c}();"undefined"!==typeof b&&(b.contextData.getQueryParam="4.0");if(a){d=d||"";f=(f||"undefined"!==typeof b&&b.pageURL||location.href)+"";(4<d.length||-1<d.indexOf("="))&&f&&4>f.length&&(b=d,d=f,f=b);b="";for(var m=a.split(","),r=m.length,k=0;k<r;k++)a=n(m[k],f),"string"===typeof a?(a=-1<a.indexOf("#")?a.substring(0,a.indexOf("#")):a,b+=b?d+a:a):b=""===b?a:b+(d+a);return b}};
/******************************************** END CODE TO DEPLOY ********************************************/

[kautuk_sahni]

@Tof_Jossic @yuhuisg @nnakirikanti @Anuhya-Y @SatheeskannaK @brekrut Curious to hear SMEs perspectives on this question. Do you all mind sharing your thoughts?

[Jennifer_Kunz]

Everything in there seems to be set up fine, so we might need more details. Is this code you've set up in your Analytics extension, or in a rule? Are you seeing your variables fire in some situations but not others? LinkTrackVars can be tricky like that, where on custom link (s.tl) beacons it won't pick up variables unless they were specific in linkTrackVars. 

[kalaivaniL3]

thanks for the reply, custom codes are working it looks like there was some cache issue. plugin custom codes were not returning value were not working as cookies are not setup from plugin as we dont have cname setup which is required i guess.

[Jennifer_Kunz · Accepted solution]

You definitely should not need a CNAME set up for the plugins (or really for any part of your implementation). The getPreviousValue plugin uses Javascript to write a first-party cookie- nothing to do with CNAMEs. And your prop2 has nothing to do with cookies at all. So I'm guessing your problem was more that your overall beacon wasn't firing, rather than something about your plugins here?
In which case: overall, by default, Adobe will set first party cookies using Javascript. If you have a CNAME, the visitor ID/MCID cookie can be set as a more secure HTTP cookie, which for a while got around some limitations in Apple but no longer. These days, a CNAME might help you get around some ad blockers, but even that is less and less likely. 

I can copy and paste your code into the dev console of my random little test website (https://www.digitaldatatactics.com/learningSite/), fire a beacon with an s.t() function, and see each of those variables being set. If you're still not seeing beacons, then there is a problem somewhere else in your implementation... but you should already have all you need to get this working (no CNAME required).

[kalaivaniL3]

Hi Jennifer, yes it sets from the javascript code, code interpretation is fine and i am working even in console trying to setup still it didnt write a cookie from a getpreviousvalue , and all values i have setup using the template only this previous value i am setting up over here in custom code, will there be any issues with the values used from the dataelement setting up as a cookie.

[kalaivaniL3]

Adding to the above, found that my website i am working on dev environment is with the url hostname like "https://publish-e-254678/adobeaemcloud.com" the domain name set by adobe  cookie is all complete hostname "publish-e-254678/adobeaemcloud.com"(when you check on your website it would be digitaltactics.com) instead of only taking the domain name, but the plugins are all designed in such a way that to take the domain name so my cookie is not getting written over here in my website.hence the plugins are not working.

I would need to know whether aem publish url can be used for analytics implemenattion as few functionalities differ and plugins are all designed in such a way to read from domain instead the full hostname

[Jennifer_Kunz]

Ah, yeah, I can imagine the plugin cookies struggle with that kind of domain. It looks like in the getPreviousValue plugin they expect the URL to be a certain way- it's going off the hostname, which for that URL would be "publish-e-254678", and it doesn't know how to handle a hostname with no dots. 
It wouldn't be too hard to tweak the plugin code (or just rewrite it) to give you more control over the domain. Is https://publish-e-254678/adobeaemcloud.com going to be your permanent domain? Are you using other Adobe plugins that rely on cookies?

[kalaivaniL3]

Thanks Jennifer, the above domain is not our live url we get live url like www.lt*******.com.

And I am using getvalonce, previous value, new/repeat plugins

[Jennifer_Kunz]

Sounds like this problem would go away in production with your live URL; how important is it to you to get them working in your dev environment?

[kalaivaniL3]

yes it is important to check in dev just to ensure code works fine before it moves into production.

Thanks a lot for helping me on this.