How do I get the 'new names' recognition added back?

[Anonymous]

Hi,

We may have loaded a list twice into Marketo, which now makes it looks like none of the names were

first time 'new names' in Marketo.   How do we get Marketo to review the list and see which of them

were the first time leads in Marketo?  

Thanks.

[Anonymous]

You may need to do a mass update of those leads to assign them to their acquired by status