Views:
Question:
Is it possible to search EMPTY() in a numeric field?

Answer:

By product design, EMPTY() search cannot be utilized in numeric and date fields. Alternatively, a List dialog can be created to define a search function such as EMPTY() under the Query Definition section of a List configuration.
For more information on how to create a List and what search operators can be used within a List, please see:
KBA is applicable to both Cloud and On-Premise Organizations.