"XML Shipping System is unavailable, please try again later." in SendPro Enterprise or SendSuite Live

The message "XML Shipping System is unavailable, please try again later." occurs because that UPS service is not available for Belize.
Products affected: SendPro® Enterprise

Issue

When attempting to process a UPS API International Return Label for an address in Belize, the message "XML Shipping System is unavailable, please try again later." appears.

Cause

That UPS service is not available for Belize.

Resolution

According to UPS, this service is not currently available for this location.

UPDATED: March 15, 2021