Field help (GASQTY) 

Because of the analytical nature of a line, you have to enter a quantity expressed in the indicated non-financial unit.
The default value of this field is calculated based on the amount of the entry line and the "Unit value" line of the analytical account, by dividing the ex-tax amount (converted into devise commune) by the value of the non-financial unit. The quantity can be modified.

SEEINFO This information can be processed on the analytical and budgetary reports and be useful for the automatic calculation of the analytical allocations.