Specifies whether the communication between the message service handler (MSH) servers is synchronous or asynchronous. When set to true, the MSH response message is returned on the same HTTP connection as the inbound request, with an appropriate HTTP response code.
This parameter is not required and is not used in the current release of ebXML Protocol Manager. However, it is provided for compatibility with previous releases.
Ext Attribute SyncReplyMode replaces this parameter in the current release, since ebXML requires a string (for example, None or mshSignalsOnly) and not a Boolean value.