Adding new members via list to existing nurture campaign

[v14]

I am creating a nurture campaign that will start with a specific list  that I uploaded, but I will be adding people to my list as the campaign goes and will want them to start with the first email. I read that I would need a “trigger” so that newly added contacts would start receiving the emails. Would I add the trigger “added to List” like I did below, or should I add the trigger in a separate Smart Campaign?

Also, when I add new contacts, can I just update/import the new people into the existing list? 

[SanfordWhiteman · Accepted solution]

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I am creating a nurture campaign that will start with a specific list  that I uploaded, but I will be adding people to my list as the campaign goes and will want them to start with the first email. I read that I would need a “trigger” so that newly added contacts would start receiving the emails. Would I add the trigger “added to List” like I did below, or should I add the trigger in a separate Smart Campaign?

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The Added to List trigger is fine, but you don't need the filter, as that's completely redundant.

Don't know what you mean by a "separate" Smart Campaign?

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Also, when I add new contacts, can I just update/import the new people into the existing list? 

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Sounds like it to me.