Field help (DESCEND)

If the Calculate all BOM levels box is ticked:
the cost calculation will go through the BOM of the product specified in the screen and will start with the lowest components. The cost of each component at each level will be calculated and stored and the report will then be detailed.

If the Calculate all BOM levels box is not ticked:
the calculation will be performed from existing costs for the components of the calculated products.
(it is always the case if the calculation is launched for several products).