If a lead that exists in Marketo more than once and fills out a form, if a cookie exists on the machine they're using, the form filled will be attributed to whatever lead is associ...
You could refer to these docshttps://developers.marketo.com/rest-api/endpoint-reference/lead-database-endpoint-reference/#/Leads/associateLeadUsingPOSThttps://developers.marketo.co...
Yes, Sanford is right. There are plenty of documents about it. Here are a few that you could refer 🙂https://nation.marketo.com/t5/Product-Blogs/Instructions-for-Creating-a-Custom-...
Yes, using the landing page name for a Marketo landing page should be pulling the leads that visited the web page. Can you try removing the constraint - "QueryString" in the filter...