Search Spec can not be added to applet

Hi Oracle Community,

I am trying to add a Search Spec to a newly created applet but everytime I validate it, it says: "BC field doesn't exist in the business component" although the BC field exists in the business component.

The field EC Modo Gestion has a picklist. The Search Spec should be:

( [Internal Asset Flag] =  "N" OR  [Internal Asset Flag] IS NULL ) AND [Scenario Test Flag] <> 'Y' AND [Parent Asset Id] IS NULL AND [EC Modo Gestion] = LookupValue ("EC_MOD_GESTION", "Pendiente")

I don't know why I get this error if the BC field already exists.

Can anybody help me?.