Yes to both. So they are in SC, I just want to create a way so that I can identify these 1400. Right now I have to pull them via data warehouse and depending on the time/day its millions of rows of data, because I have to pull all these Unique Identifiers.

If I have a group(1400 +/-) of unique identifier's(unique identification number), is there a way to upload them into Adobe Marketing Cloud and have the ability to follow them. These unique id's are already in AMC with millions more, I want to segment this group so I can identify just them. Is this r...