Field help (SCCCOD) 

This field contains the package number, defined using the SSCC codification.
The management of the SSCC numbers (Serial Shipping Container Code) is to trace the shipped logistical units by means of a standardized code
as per the EAN Gencod standard.

The SSCC contains 18 numbers. It is structured so as to ensure its uniqueness in the international context. This structure is composed of a root and a sequence number counter defined respectively by the parameters SSCCROOT - Root of the SSCC code and SSCCCOU - Counter identifier