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Marketo is creating duplicate leads despite they're already in Salesforce with the same email address.

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Anonymous
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Marketo is creating duplicate leads despite they're already in Salesforce with the same email address.

I've noticed that Marketo at times creates duplicate leads even though the leads in Salesforce have the same email address. Today, one of the marketing coordinators imported a list of contacts into a list in Marketo that are already in Salesforce (don't ask), but it created new leads for all of them. One thing I did notice is that she didn't always include the company name. But the email addresses are the same because the list was pulled from Salesforce via a smart list. These are Accounts that are closely monitored, so there's no duplicate in the system for any of these.

So why would Marketo still create a duplicate Lead if the email address of the Contact in Salesforce is the same? I've seen this happen with form fills too where the email address is the same.

I read elsewhere that Marketo might do this if there are duplicates in Salesforce, and although that wasn't the case with the list import above, why would that matter? If Marketo sees at least one record with the same email address, I would think it wouldn't create another one, isn't that right?  Thanks

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Anonymous
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Re: Marketo is creating duplicate leads despite they're already in Salesforce with the same email address.

Hi Karen,
This does seem like an odd case. Are all of your leads and contacts in SFDC coming down to Marketo? Do you have a custom dedupe filter enabled? 

If not, you may want to submit a support ticket for more investigation.

Will

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Anonymous
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Re: Marketo is creating duplicate leads despite they're already in Salesforce with the same email address.

Hi Karen,
This does seem like an odd case. Are all of your leads and contacts in SFDC coming down to Marketo? Do you have a custom dedupe filter enabled? 

If not, you may want to submit a support ticket for more investigation.

Will
Anonymous
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Re: Marketo is creating duplicate leads despite they're already in Salesforce with the same email address.

OK, it turns out everything I wrote is a lie. Seriously, I was given premature information, but as it turns out, as a result of a mailing to our distributors to attend a live webinar, several registered with a different email address, and the rest were obviously forwarded the invitation and were not yet in our database. So this is a non issue.
 

Thanks for your reply, Will.