I would like to track the leads acquisition channel where they click on our banners on our partners website ( completely different domain name eg adc.com.au) which takes them 123.com.au (our website that has munchkin code) which then has our marketo form.
Example: if visitor clicks on adc.com.au and clicks on a banner that we have put up it takes them to 123.com.au (our website) and fill out our marketo form, ID 4567.
How will I know that they originated form adc.com.au
Can you please help me how can i achieve it?
P.s there are no marketo landing pages. The forms are embedded in an iframe on our website
There have to be landing pages. You can't put a Marketo form directly in an IFRAME. You must put the Marketo form in an LP and that LP in an IFRAME.
Anyway, the answer is to pass the Referrer of the outer (main) document into the URL of the inner doc, assuming the main doc and IFRAMEd doc are loading from different domains.