The local system cannot support the requested synchronization level. This is usually because the transaction has requested a higher synchronization level than is supported on the connection. The type of connection is configured in the ConnectionType attribute of the CD entry that is specified in the SYSID option for the intersystem request. Designing your network configuration describes the different types of connections and the synchronization levels that they support. Ensure data integrity with synchronization support describes the synchronization levels, and their uses in intersystem requests.
The communications conversation has not been started, or has been terminated.
Examine the CD entry that the request uses. Check whether the ConnectionType is correct. Check the type of intersystem request that the application is making, and that the synchronization level that is requested is supported on the connection. If using distributed transaction processing (DTP), check the SYNCLEVEL option that is used on CONNECT PROCESS. Make any necessary changes to the CD entry or the application, and rerun the request.