Calling convention: SCM_Calc_Range_of_Coverage("Buchungsperiode": String, ProductID: Integer, DataID: Integer, "Geschaeftsart": String): Float
Description: Calculates inventory range of coverage for a product and its business subset, then writes the subset result to the specified current-object record.
Parameters:
Buchungsperiode: period used by the coverage query.
ProductID: product identifier.
DataID: current-object record to update.
Geschaeftsart: business type used for the subset calculation.
Returns: Product coverage value when calculable; otherwise NULL. The function also updates the subset field.
Availability: Default; SCM-specific and dependent on fixed product, inventory and sales views.
Example:
Coverage := SCM_Calc_Range_of_Coverage("2026-08", ProductID, DataID, "Retail");