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Duplicate Elimination
Advanced contact data matching algorithms identify duplicates on your file.
Duplicate Elimination reduces wasteful and counter productive direct marketing efforts from unwanted, repeat communications to the same household or individual. The Duplicate Elimination service uses advanced name and address matching algorithms to identify duplicates of the same individual, or different individuals at the same household. In this way, mailers can avoid aggravating customers with unwanted, repeat mailings and ensure that intended recipients are not overlooked.
After running this service, you will receive a result file with the duplicate records identified with a set ID. All records in the duplicate set, except the survivor record, are marked with a duplicate flag.
A summary report provides you with statistical data describing your results and a record layout defines field positioning and content.
Delivery Options
Benefits
- Increase marketing campaign ROI by not duplicating contacts.
- Save costs associated with printing and mailing duplicate contacts.
- Increased accuracy of data analysis.
- Reduce environmental and financial costs associated with duplicated mail.
- Avoid aggravating customers with unwanted repeat mailings.
Match Rates
2 - 20% Range.
Match Rate Factors
- List quality (structure, format, data entry)
- List type (profile, function, demographics)
Related Services
Improve overall address accuracy by also running Address Standardization & Correction and the National Change of Address (NCOALink™) service. Also consider our Phone Number Append service which adds and verifies telephone numbers to ensure that you have the most up-to-date telephone contact information.
File Format Specification
*Please note that following our file format specifications is required only for our Self-Service products.
Please see our File Format Specification page for more information on required input and standard result fields.
The Duplicate Elimination service also appends the following fields:
Duplicate Flag
"X" = Duplicate
"-" = No Match/Non-Duplicate
This column contains the duplicate set ID. A duplicate set consists of two or more records. All records in a duplicate set have the same ID number.
DSF2 processing is provided by a nonexclusive licensee of the United States Postal Service. The prices for NCOALink and DPV services are not established, controlled, or approved by the United States Postal Service.
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