releaseHold via REST API

Summary:

I am unable to releaseHold via REST API. I am doing a POST on URL https://<hostname>/fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/action/releaseHold

with headers:

Content-Type: application/vnd.oracle.adf.resourceitem+json

REST-Framework-Version: 9

But I am getting the below error:

{

    "title": "Bad Request",

    "status": "400",

    "o:errorDetails": [

        {

            "detail": "The specified operation is not supported for the invoked HTTP method. Please check the URL and the headers.",

            "o:errorCode": "27505"

        }

    ]

}

I have looked at the sample request payload in the documentation and also confirmed that the URL is correct -- https://docs.oracle.com/en/cloud/saas/supply-chain-and-manufacturing/23c/fasrp/op-salesordersfororderhub-action-releasehold-post.html

I have also done a describe on salesOrdersForOrderHub and confirmed that POST is indeed the right method for the action releaseHold.