Is it possible to append custom metadata fields, specifically legal_hold_id and chain_of_custody_ref, to the JSON payload when triggering a bulk export via the Agent Scripting API? Current documentation lacks examples for custom attributes. The standard request below returns a 200, but the resulting S3 manifest omits these keys, breaking our audit trail validation.
{
"export_type": "bulk",
"filters": {"date_from": "2023-10-01"},
"metadata": {
"legal_hold_id": "LH-992",
"chain_of_custody_ref": "CC-441"
}
}