Hi Patrick,
I found an example on SAP HANA SPS07 - Various New Developer Features video, Thomas shown both there.
About the name, it's a caracteristic of .procedure to create a synonym with this syntax package::procedurename. So it's probably PROD::InitializeSalesLoad
I don't have a system ready to test it, take a look if you find with
select * from synonyms where synonym_name like '%InitializeSalesLoad%'
Regards, Fernando Da Rós