If you have integrated a page with your MailChimp account, you can now receive the page ID from where the lead came from, the specifc variant letter that they saw, and a custom date for the lead submission.
These values will be passed to your list as: UBPAGEID , UBVARIANT and UBDATE so you’ll need to add these fields to your list before you can receive the data. To do so, check out this knowledge base article here: Capture Page ID, Variant Letter and Custom Date in your MailChimp Lists.
Once you start receiving this data for your leads, you can do things like segment email campaigns based on a specific page or page variant or trigger auto-responders even if you’re not sending the double-opt-in confirmation email.
Let us know what you think! We still have a full-fledged field mapping solution on the radar, so go add your name to the list to help us prioritize.