Okay, I’ve got it all so far. However, I’m not a developer so I need a little extra assistance. The USPS Web Tools site suggests a test API. Having read your screen shot I am under the impression I need only let them know I am ready to “go-live”. Since I do not know how to use a sandbox environment or test API it would be easier for me to simply let them know I am ready and depend on your plugin to set it up for me. Am I going in the right direction?
Thanks. I hate to keep asking questions but I am figuring this stuff out as I go.