Hi @bhorrocks , this is not working with hostname acs, can you help me with the parameters needs to be added in URL / Authorization / Headers / Body of the PUT Request 

Hi @bhorrocks , My organization is using multiple Webhooks and we need to migrate to V2. As shared by you we have to create put request https://experienceleague.adobe.com/en/docs/workfront/using/adobe-workfront-api/event-subscriptions/event-subs-api#event-subscription-versioning  Request url is PUT ...