This error usually occurs if the address you entered into ShipEngine does not exactly match the address listed on your UPS profile. Even minor discrepancies like the difference between "Dr" and "Drive" can cause issues. The best way to check is to compare the information side by side and look for any discrepancies.
To do this you will navigate to the UPS website. Check My UPS > Maintain Your UPS Account > Select account, then “Continue” to view the address on file. When you get there, the URL for the page should be: https://www.ups.com/myups/profile
Compare the two addresses (one in ShipEngine and one in UPS).
Please note that you must enter a “Title” this is a required field in ShipEngine. If this area is blank in your UPS account, you will need to update this and input the string when you connect your UPS account.
If you check the Contact Information address in UPS and continue to have issues, please check your pickup address in UPS by selecting your account under Maintain Your UPS Account in UPS, then clicking Continue.
Be sure that the address above matches the profile address in ShipEngine. If it does not, please enter this pickup address into ShipEngine instead. If you continue to have any issues, please send us a screenshot of your UPS profile and pickup address so we can look into it further for you.