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You are here: Home > Data Cleansing > Custom File Suppression

Custom File Suppression

Custom File Suppression is the process of de-duplicating files against other files. You might have a main contact database file and a do not mail file that contains names and addresses of individuals or companies that have opted not to be included in your direct marketing campaign.

Custom File Suppression forms part of our Data Cleansing Service, an example of what you can expect from this service is shown below:-

Example

You have the following data in your mailling database:

Title Forename Surname Address1 Address2 Address3 Address4 Postcode
Before Data Cleansing for Custom File Suppression
Mr Joe Bloggs 12 Appleton Court Wakefield West Yorkshire WF2 7AR
Mrs Joanna Bloggs 12 Appleton Court Wakefield West Yorkshire WF2 7AR
Mr Joe Smith 18 Calder Park Wakefield West Yorkshire WF2 7AR

You have the following data in your Do Not Mail or Opt-Out file

Title Forename Surname Address1 Address2 Address3 Address4 Postcode
Mr Joe Bloggs 12 Appleton Court Wakefield West Yorkshire WF2 7AR

This data is cleansed by the Custom File Suppression service to:

Title Forename Surname Address1 Address2 Address3 Address4 Postcode
After Data Cleansing for Custom File Suppression
Mrs Joanna Bloggs 12 Appleton Court Wakefield West Yorkshire WF2 7AR
Mr Joe Smith 18 Calder Park Wakefield West Yorkshire WF2 7AR

As you can see from the example above, Joe Bloggs is removed from the mailling database as he has opted out of receiving any direct marketing mails.

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