SAP Message AC571 - Call parameters for FIAA_NBV_SHOW are not complete

Diagnosis
Function module 'FIAA_NBV_SHOW' was not called with all of the requiredinput parameters.
These input parameters are: company code, asset main number, assetsub-number, depreciation area, and asset value date.
At least one of these parameters is blank.

System Response
The function module cannot be carried out.

Procedure
Correct your entries.