Field help (HCOE) 

If no analytical distribution codeis entered, theanalytical distribution is calculated using this coefficient. The coefficient must also be entered if several analytical dimensions are populated for at least one dimension type.

The amount allocated to the analytical dimension type is: amount * (line coefficient/total coefficient of the lines).

If the coefficient is not entered, it is worth 0, except if there is only one distribution line. In that case, the total amount is allocated to this dimension type, and the coefficient is equal to 1.