Finding and your answer
SalesOrder.SalesChannel column
Not found in this gold boundary
99%
How the model read it
No sales-order acquisition-channel attribute was observed. The workbook's Direct, Partner and Online values are illustrative reference data, not a current-gold implementation.
Workbook evidence
Cited current gold
Open questions
Are Direct, Partner and Online exhaustive governed channels?
Can an order have multiple contributing channels, and if so what attribution rule applies?