Field help (CLCDESCEND)

The Calculate all BOM levels check box is only active for a single product calculation.

• If this check box is selected, the cost calculation process descends through the bill of materials (BOM) to the lowest level, or up to a parent product whose 'Standard cost update' in their product-site record is entered. The cost calculation thus starts from the lower components. The standard cost of each component at each level will be calculated and stored, and the report will then be detailed.
   
• If this check box is clear (not selected), the calculation is performed at the first level, from the standard costs of the components of the calculated products. This also applies if the calculation is launched for multiple products.

 By definition, a material does not have to be a component. The Material cost selection field is used to determine how its cost is calculated when defined as 'Calculated' and not 'Entered'.