REST API to update sales order line

Summary:

Im using the rest api to update the sales order line (warehouse field) using this REST API(PATCH Method)

But its not working.

Content (please ensure you mask any confidential information):

https://<hostname>:443/fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/OPS:300000369332716/child/lines/300000369332717
{    "RequestedFulfillmentOrganizationId": 300000001825463,    "RequestedFulfillmentOrganizationCode": "RIY_PRIVATE",    "RequestedFulfillmentOrganizationName": "Riyadh Private"}

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):