It would be helpful in minimizing the number of calls per customer order
if the '/shipments/getrates' API method supported accepting multiple
carrier codes (for example, as a comma separated list), or even a
special value to return all carriers (for ...
FWIW, @AirplaneFactory, I gave up on this (I actually forgot that I
asked this here) and built my app using the various carrier APIs
directly (like UPS). As far as your issue, I would have to go back and
look at what happens with the GetRates endpoin...