Null Replacement Rule (null_replacement)

Replaces null or missing values with a default value.

Field	Description	Required
replacement_value	The value to use when the source column is null or empty.	✅ Yes

Example:

{
    "type": "null_replacement",
    "source_column": "age",
    "destination_column": "",
    "replacement_value": 0
}

Behavior: If the age column is null, it will be replaced with 0.