Search Records API with criteria where the value is null

Search Records API with criteria where the value is null

Hi,

I am trying to get the list records where a custom field is 'null' but i do not success.

Is it possible ? If 'yes' how please ?


Otherwise, i will need soon to records ralated to Date. On this part, the documentation mentioned  :

"To search for Date, DateTime, Lookup, Number, Currency, Boolean fields, you need comparators other than starts_with and equals."

Could you please clarify which comparators have to be used because i do not find more info in the docuementation