Before processing your NCOA update, TrueNCOA must first verify, validate, and perform hygeine on your input records according to USPS standards. In this post we provide an explanation of this process and provide some helpful links to some of the resulting error and warning codes, related to deliverability, that you may receive in your export file.
NCOA CASS Certification
The USPS Coding Accuracy Support System (CASS) corrects and standardizes addresses, adds missing address information such as ZIP codes, cities, and states to ensure the address is complete, performs delivery point validation to verify whether or not an address is a deliverable address, and checks against the USPS Locatable Address Conversion System, updating addresses that have been renamed or renumbered. Because this process saves the post office time and money due to reduced sorting and undeliverable mail, mailers who use it can qualify for bulk mailing discounts. Please see the "About NCOA" section of our FAQ for additional information regarding the NCOA process.
An example of what CASS software will correct in an address
Oake park IL
1010 Lake St
Oak Park IL 60301-1102
It corrects city name; adss street suffix, ZIP code and ZIP+4 add-on; and identifies the address as a business. You can read more about identifying residential vs. Business addresses here.
NCOA Delivery Point Validation
Delivery point validation checks addresses against the USPS database to determine deliverability. Matching records are marked valid. If they have no matching entry, they are marked invalid with a corresponidng error code and cannot be delivered. The process also cleans up and formats the address according to USPS standards to ensure deliverablitly and qualify mail for bulk discounts. You can read more about how to identify invalid addresses here, and to see more detail on DPV error codes see our data dictionary here.
CASS Errors and Warning Codes
Even if CASS determines a record is valid, it may still alter or add part of the address. In this case it attaches a warning code to the record. It attaches an error code if the record is undeliverable. Please see our data dictionary for a complete list of errors and warning codes that could be attached to a record during the validation process.
If you have any questions or need help, contact us at firstname.lastname@example.org.