I came through a problem with shipping labels on Magento 1.9.
When I try to create a label for UPS (using button "ship" and checking "create shipping label") a popup appears (so far so good) BUT after I create my package and clicking "ok" I got an
"Missing or invalid ship from address line 1".
As far as I know this is coming from UPS API.
My addresses are OK, I tried with several ones, but still got this error message.
Does someone have an idea about what is going on?