The "Manifest" operation applies to certain carriers and service providers. Typically, at the end of your shipping day, before you tender a collection of packages to your service provider, you are required to upload a "manifest" file, and print out a sheet of paper to give the driver.
The Manifest API perform this action given a list of orders. You are expected to provide specific TxnIds or TrackingNumbers that will be included in the manifest. Upon success, Teapplix will return a PDF document that you can print out to be included with the packages:
Please note that the value of ServiceProvider parameter:
These two service providers should be PBOWESPS
These service providers should be FIRSTCLASSPS
For all other normal USPS ship methods, ServiceProvider should be "USPS".
For all DHL ship methods, ServiceProvider should be "DHL".