The steps in this section are only required for existing connections created prior to the initial release of the simplified connections page on 2/18/20. For existing connections, you are prompted to specify a service catalog service WSDL (for accessing and configuring the inbound and outbound adapter to use either business objects or business services) in the ERP Services Catalog WSDL URL field and optionally an event catalog URL (for accessing and configuring the inbound adapter to use event subscriptions) in the ERP Events Catalog URL field and interface catalog URL (for accessing and configuring the outbound endpoint using REST business resources) in the Interface Catalog URL field.