Thanks for the response; the issue is this: We have 190k records in SFDC but only want to keep 40k records synced to Marketo. So, if a new record is created in Marketo by someone filling out a Marketo form on-page, they are created in Marketo first, then synced to SFDC. There, duplicate rules currently allow them to be created as a Lead even if another Lead is present with the same email address. Conversely, if a lead is in SFDC AND in Marketo but they are NOT synced (two separate records), when we sync from SFDC into Marketo it creates a duplicate as well. The infrastructure is a mess, do you have any recommendations? ringlead? Andrew
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