Pop-up MailerLite Integration

Site URL: https://www.mariocarpe.com/

Hi everyone!

I am using an email marketing platform called MailerLite and I have been integrating it into my Squarespace website. It works perfectly when I do have to create a form to get subscribers. I just had to add a code-injection as it is shown on one of the screenshots. It was easy because I just had to follow a video tutorial that MailerLite has on its own website.

The issue comes up when is time for the pop-up since I would like to create one to get also subscribers to my mailing list through it. I have to insert the code-injection that appears on the other screenshot (the one with the green top bar) and really don't know how and where to insert it. The MailerLite team told me that I have to add the code before the closing </head> tag, but I really don't know how to do it since I have already done that with the previous code already, although was related to the form, not the pop-up.

Does anyone use MailerLite? Did you have the same issue? Can anyone help me with this, please? Probably is something simple and easy but for me, it means a world 😅

Thanks in advance for your help!

</head> is in Code Injection > Header