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111057: Invalid Unit of Measurement for the given country
This message indicates that the units of measurement set in your WooCommerce store are not compatible with the UPS API expectations. For instance, for the United States, they are pounds (lbs) and inches (in).
To resolve the issue:
- Go to WooCommerce → Settings → Shipping → UPS Live Rates → Advanced Options.
- Locate the Measurement Units options and select the appropriate unit for your country.
- Save the changes and re-test the rates’ calculation.