If you received an email stating the following
Effective December 31, 2018 UPS® will disable all unsupported Developer Kit API URLs.
You are receiving this notification because our records indicate you are using an unsupported API URL: https://www.ups.com/ups.app/xml/ API name for UPS Developer Kit API transactions. Continued use of the URLs will subject your customers to unexpected outages and loss of packages with UPS.
To ensure you are using the correct URL for processing, we’ve made the latest version available in the Developer guide: https://onlinetools.ups.com/ API name. It should be used for all UPS Developer Kit API transactions.
Please verify with your IT resources […] Read more