Strategy: A Primer in the Basics of Catalog Circulation

Once you make your housefile selections and determine your prospect lists, execute your circulation plan. Written instructions always should be given to your service bureau, which defines how the merge will be run. You run a merge primarily to identify and eliminate dupes from your mail file. A merge identifies two types of dupes: between files (known as interfile duplicates) and within a file (known as intrafile duplicates).