The following is an example of how to add the Optimise Sale tag to Google Tag Manager (GTM) using a cookie to record the referral source. The Optimise tag is only activated if the referral source is Optimise, so the campaign landing page should be e.g https://www.mysite.com/?utm_source=optimise

1. Create a new custom HTML tag with the following code

<script language="javascript" type="text/javascript">
var ssSessionId = '';
if(ssGetURLParameter('utm_source') != null) {
var ssSessionId = ssGetURLParameter('utm_source');
}
if (ssSessionId.toLowerCase() == 'optimise') {
ssSetCookie(ssSessionId);
}
function ssGetURLParameter(name) {
return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,""])[1].replace(/\+/g, '%20'))||null
}
function ssSetCookie(cValue) {
document.cookie = cValue + "=" + cValue + ";expires= " + ssCalculateExpireDate(30) +"; path=/";
}
function ssCalculateExpireDate (days)
 {var d = new Date();
 d.setTime(d.getTime() + (days*24*60*60*1000));
 d.toUTCString();
 return d;
 }
 </script>

IMPORTANT: the cookie duration (ssCalculateExpireDate above) must be set to match the cookie duration of the campaign.

2. Create a trigger and test the above tag

  1. Create a trigger to activate the above tag  on every page.
  2. Test the above tag is being activated by going to e.g https://www.mysite.com/?utm_source=optimise and check that an Optimise cookie is present.

3. Create a new custom HTML tag with the following code and set it to trigger on the completion or thank you page

 

<script language="javascript" type="text/javascript">
var ssOrderID = '';
var ssAmount = '';
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1);
if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
}
return "";
}
var ssSessionID = getCookie('optimise');
if(ssSessionID) {
var ssUrl = "https://track.omguk.com/transaction.asp?MID={MID}&PID={PID}&AppID={{SaleReference}}&Status={{SaleValue}}";
var oJS;
oJS = document.createElement('script');
oJS.src = ssUrl;
document.body.appendChild(oJS);
}
</script>

 

IMPORTANT: {MID} and {PID} must be replaced with the correct values for your campaign. Your Optimise contact will be able to provide these values. {{SaleReference}} and {{SaleValue}} must be replaced with your relevant data layer variables. where relevant. If no Sale Value is required this can be left blank.

4. Create a trigger and test

  1. Create a new trigger to activate the above tag when the thank you or completion page has loaded

IMPORTANT: The trigger must be activated on Window Loaded (not Page View):

triggertypejpg

2. Test the above by deleting cookies and then completing a transaction from e.g https://www.mysite.com/?utm_source=optimise

3. Check your login for a tracked transaction (you may need to wait for up to 1 hour) or ask your Optimise contact to check.