Hi Jas/Ron Sanford is correct until you have control over your entry points in getting form data into Salesforce, then you will continue to have duplicate issues. However, if you would like to align your web history in Marketo and use Salesforce as your form entry point, you might consider trying a process something like this which I call Marketo connect that links the SF record by via munchkin cookie to its anonymous record in Marketo: It also supports deduping tools as long as they respect Salesforce custom objects when updating either the lead or contact ids. This has been tested with CRM Fusions DupeBlocker offering. In considering this type of solution, you really need to be sure that the effort of tying all these pieces together is worth the return. This is not a simple solution but it prevents the duplication problem between Marketo and Salesforce when using non-Marketo forms that send the data to Salesforce. Contact me directly if this is interesting to you. Cheers, Eric
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