null (nil) value

Some parameters support null values. These parameters are marked as "nillable" in their descriptions.

JSON

"_field_name_": null

SOAP

<_field_name_ xsi:nil="true">

Resetting (clearing) a parameter

In the update and set methods, you can pass null to delete the value for such a parameter.

If a parameter is requested but its value is not set, the get method returns null.