Hi @BrainardM8. Were you creating a segment for these contacts that were updated within the last 24 hours (meaning the list was uploaded during that time)? Segments will not pull in contact information where the criteria for segmenting was updated within the past 24 hours.
If this is the case and an email needs to go out sooner, you can search for these contacts by custom field and by tag and add them to a list for sending.
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