How to determine if record is not already in Salesforce?

[Anonymous]

How do I setup a smartlist trigger so that any new lead that comes in, it will check to make sure it isnt already in SF?  I get new leads from our website, salesforce and event partner, but I want to make sure I'm not altering something if it comes from SF.

[Anonymous]

If a lead comes in from a source other than SalesForce, Marketo will automatically search for a pre-existing record using email address as the unique identifier. If it finds one, no new lead will be created. Information may be altered on that pre-existing lead if you dont block field updates from various sources.

If no match on email address is found, a new Marketo lead will be created. If you want that lead in SalesForce, you have to set up smart campaigns to push it there.

[Anonymous]

Then how do you determine if the source is SF?  I had setup a trigger that said anything from salesforce.com to ignore, but it didnt push any new leads to SF.  Once i removed that it worked, but new leads from SF also were updated.

[Anonymous]

I'm not fully clear on what you're trying to accomplish, but check the "Original Source" field. It will tell you which leads were created in Marketo from SalesForce.com.

[Anonymous]

Clarification: The field is "Original Source Type" and the value will say salesforce.com.