post https://api.trifft.io/v1/custom-parameter/entity//id///append
Append a JSON object to a custom parameter of type JSON_LIST for a specific entity.
The object must conform to the JSON Schema defined for this custom parameter.
Behavior
The endpoint locates the custom parameter defined by:
- entity_type
- entity_id
- param_slug
The parameter must:
- Exist
- Be of type JSON_LIST
The provided JSON object is appended to the existing list value.
If the list is currently empty or null, it is initialized with a new array containing this single object.