This is where it can get a bit tricky. However, for the vast majority of clients we consult with they’re only mailing their most recent customers – those within the last 3 years. If this is you, then you need what I call the “left hand / right hand approach” to updating your house file via NCOA. In your left hand you have your full house file, which is everyone dating back all the way to the beginning of time. In your right hand you have your most recent customers (12, 24, or 36 months) for your next direct mail campaign.
First, the left hand aka your full house file, this database of names should have its own program for NCOA processing. Since you are only mailing the most recent customers then the whole house file can be cleansed less frequently. Our recommendation is quarterly or semi-annually depending on the size of the database and available budget. Having a program like this in place will ensure that the whole house file is at least on a semiannual basis being run through NCOA and receiving change of address updates. This way if you ever want to execute a reactivation campaign at least the file has been cleansed and the names and addresses of your past customers will be in decent shape.
Next, the right hand aka your most recent customers, this “file” will be utilized for your most recent direct marketing campaign. In the above example, the left hand / full house file, these records would’ve gone through NCOA either quarterly or semiannually. However, due to the time in between updates of the full house file they will need an “out the door” cleansing via NCOA to ensure that the names and address are fully up to date and that they conform to the USPS 95 day rule for NCOA processing.