We currently have a Contact Sales page in Marketo which also includes a Thank You page in Marketo. We have all the pages tagged with Tealium and Coremetrics but we are running into an issue with grabbing the originating page. For example: if a user comes from Page A to Page Form, we see the referring url in CM as page A. When the user completes Page Form and gets Page Thank You, we do not have a way to tell that the person originally came from Page A. It seems like this could be solved by using a data layer on the Thank You page but we are still tryingt o find out from our Marketo team if this is possible. I was wondering if anyone else has had an issue like this and how they solved it? Or can this be solved without a data layer? We need to be able to know in our CM data if the TY page was triggered by someone coming from Page A, B, C, D, etc.