Updating/deduping Lead Records from Lead Database or Smart List?

[Anonymous]

I'm 100% new to marketo and have what's hopefully a super simple question to answer.  I'm trying to cross reference one smart list against another smart list to ensure the same people do not exist on both lists.  I have just a couple who appear to be on both lists as a result of a typo in the email.  Is the best practice to update the lead records from the Lead Database area and that will map to the segments when you refresh or at this point do I need to update the Smart List segments to remove the bad emails and then also update the lead database?

 

[Josh_Hill13]

Smart Lists are dynamic - that is they run at that moment and pull in only leads who currently match the criteria. If you change a lead's data, they could then no longer match a smart list.

So yes, fix the lead record directly in Marketo. You do not need to change the Smart List.