Issue
When shipping using USPS Postage Indicia in SendSuite® Live, the error message "Missing or invalid element: MailpieceShape. Error encountered (Log ID: 30857)" is displayed.
Cause
The combination of Service and Package type, for example, First Class and Letter, is not supported by SendSuite Live.
Resolution
Select a supported Service and Package type combination.
UPDATED: August 30, 2017