Are extendedProperties supported when you create an item?

[WilcoHendriksen]

Are extendedProperties supported when you create an item?

And if they are, are they included in itemCRUD.getItem response?

The response of the artifact request:

{
    "error": {
        "code": "ArtifactInputFailure",
        "pbi.error": {
            "code": "ArtifactInputFailure",
            "parameters": {
                "FieldName": "ExtendedProperties",
                "FailureReason": "Extended Property with name asd is invalid."
            },
            "details": [],
            "exceptionCulprit": 1
        }
    }
}

[IdanGoldfarb1989]

No, it's not supported.