Address Validation Via USPS-Acumatica API USPS address validation project was developed during Acumatica Summit Hackathon 2017 and shared as Github project Cleanse your address records within Acumatica through USPS API, it's free to use USPS API, setup a new account on USPS website and utilize their user id within our plugin. The Address validation custom package for Acumatica allows to interface with Contact address or any address that you can pass and validate street, city, state and zipcode. Prerequisites You must have USPS account https://www.usps.com/business/web-tools-apis/welcome.htm Quick Start Register with USPS and obtain an API user account Download the address validation custom package, import into Acumatica and publish the package Proivde access to custom button on leads screen On leads screen you will notice a new button called "Verify address" On click it will open a new window and validate the address on record and display corrected addr