USPS® CASS™/DPV® API Prototype: Multiple response requires guiding the user to the one correct unambiguous CASS standardized DPV confirmed address before being committed to the database.
Topic: Multiple CASS Standardized DPV Confirmed Address Candidate Records Demonstration: Multiple response results would likely be undeliverable return mail.
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Handling Ambiguity
Original address:7151 45TH
SEATTLE WA
Address Match Candidates: |
7151 45TH AVE NE
SEATTLE WA 98115-6101
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7151 45TH AVE S
SEATTLE WA 98118-3811
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151 45TH AVE SW SEATTLE WA 98136-2001 |
Ambiguous addresses cause return mail. This example has three candidate records as shown by the image's arrow cursor. Note the "1 of 3" pointed to by the arrow. The prototype uses
‹UP-ARROW› ‹DOWN-ARROW› to see address options.
It is doubtful that the original address could be delivered. The prototype did not replace the address because of the ambiguity.
Existing ApplicationsThe user should be warned that the address is ambiguous and be given access to candidates. Mail*SERVE address quality flags and USPS® standard DPV® footnotes are available to the user to help make an informed choice.
If address validation occurs while in direct contact with the recipient, there should be almost no possibility of failure.
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Integration CASS™ DPV® API 
