Reg: Duplicates in Marketo Database

[Anonymous]

Hi,

I am able to see duplicates even in email address can any one let me know why this is happening.

 

[Anonymous]

When a new lead enters Marketo from

a form fillout

SOAP or Munchkin API call, or

List Import

Marketo automatically searches for a lead with the same email address.  If that lead exists, the existing lead is updated instead of creating a duplicate.

However, Marketo does not automatically de-duplicate leads who are already in your database. This is especially a problem for new customers who often have many duplicate leads in their database.

Also, if you add a new lead directly into Salesforce (through the Salesforce import process or web-to-lead forms) Salesforce will create a duplicate lead that gets synced into Marketo.

Source: https://community.marketo.com/MarketoArticle?id=kA050000000KytMCAS