Field help (HISSDHFLG2) 

This checkbox cannot be entered. Its value comes from the interface setup.
It is checked to indicate that the sales history comes from deliveries and invoices, that can be selected by entering a selection code in the following field.
This history relies on:
+ the validated deliveries
+ the direct invoices with stock movement
+ the validated "order" invoices with stock movement
+ the validated "delivery" invoice lines with stock movement without delivery number
- the delivery returns
- the validated direct credit memos with stock movement
- the validated credit memos on invoice with stock movement