SAP Message RMSFRMDIA494 - No quantity has been entered for the primary output

Diagnosis
You have not entered a quantity for the primary output in the I/OMaterials and I/O Substances cost views. This value is automaticallyreplaced by the base quantity or the reference quantity entered in thecost view. Since the relationship between the base quantity and theprimary output quantity is determined first in costing, the lack of oneof the two quantities means a simplified calculation must take place.

System Response
The relationship between the base quantity and the primary outputquantity is not determined in the calculation.

Procedure
If you want the relationship between the base quantity and primaryoutput quantity to be determined, specify a value for the primaryoutput.