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Smart Lists, List Uploads, and Overwriting Data

Question asked by Conor McCormick on Nov 29, 2018
Latest reply on Nov 29, 2018 by Chris Wilcox

I know that when you upload a list to Marketo that has email addresses that already exist in the Database, it will overwrite/write in information that is on the list. My question is if after the upload a data value has changed from what was uploaded, and then a smartlist uses the uploaded list to populate a campaign for an email send, will the values on the uploaded list overwrite the current values again? For example, the original first name is Jimmy, the upload overwrites it to Jim, then at another point it is updated to James, will using the uploaded list as a criteria in a smartlist/email send change it back to Jim, which is the value in the list?