The Resolve Conversation node is a Webex CC Task/Engage integration node that depends on valid node authorization in Webex Connect. Cisco's Webex Connect documentation states that client applications such as Webex Connect must provide a valid access token to use Cisco Webex Contact Center and Webex Engage APIs, and that the token is generated from the configured node runtime authorization. If the Resolve Conversation node fails because it cannot call the Webex Contact Center integration properly, the administrator must authorize the Webex CC Task integration in Webex Connect with valid credentials. Changing the administrator password does not directly authorize the node runtime. Agent credentials are irrelevant because the flow node is running as an integration, not as an agent desktop session. A connector under Webex Contact Center integrations may be needed for some external API use cases, but the failing node shown is part of the pre-built Webex Connect/WxCC task authorization path. Reference: Webex Connect Help, Webex CC Task Integration Nodes and Node Authorizations; Resolve Conversation - WXCC.