Track subscription in Google Tag Manager

Hi Maurizio,
I’m afraid I don’t know much about Google Tag Manager but I think you can do a lot with MailUp webhooks. When someone subscribes, you can invoke a service or call a webpage providing the details of the new subscriber as parameters.

Please check out our documentation
https://help.mailup.com/display/MM/Webhooks (ITA)
https://help.mailup.com/display/MUG/Webhooks (EN)

or ask to MailUp support team for help

Hope this helps

Regards