Pass Email Subject line as variable for "UTM_Campaign" parameter

[RESCQUNET]

Hello, 
I am looking to put in my email template a link to my NPS page for further feedback on my services and I am looking to add the email's subject line to the UTM_Campaign parameter. 

Here's what I'm looking to do: 
https://sociallyconstructed.online/[feedback-page]/?utm_source=CTCT&utm_medium=newsletter&utm_campai.... 

The Constant Contact variables table however doesn't have a section for subject lines. I've been playingaround with the subject line as a custom field but it does not look like that is generally captured. 

I have also pushed some notifications to Google Tag Manager and GA4 to see if the auto-source will record anything about the emails name and it passes just an "email" tag in lieu of anything specific.  

For now, I have a generic "general" tag in the UTM field until I get a better answer, but would really love to know if this is a thing.

What I've checked:

1. https://knowledgebase.constantcontact.com/articles/KnowledgeBase/38461-Insert-Dynamic-Links-in-an-Em... 
2. https://knowledgebase.constantcontact.com/articles/KnowledgeBase/33120-Create-and-Manage-Custom-Cont... 

Haven't found anything else that is relevant

[Zoe_H · Accepted solution]

Hello @RESCQUNET,

I apologize, but those options are not available in our regular editor. You will want to give our Support Team a call to discuss Custom Code.  Thank you!