Hello,
I started using this USPS plugin and it works well for US.
However, when I get orders from Canada, there is no “Create New Label” button, when I try to generate label thru “Generate Packages” button it gives me this error:
API Authorization failure. User 243ELYPR5990 is not authorized to use API FirstClassMailIntl. [80040B1A, USPSCOM::DoAuth]
Can you please help me figure out the way to ship to my Canadian Customers.
Thanks.