Common configuration mistakes

The following is a list of common configuration mistakes:

• The IMS™ transaction has not been defined in the Listener configuration data set.
• The Implicit or Explicit parameter in the Listener configuration data set does not match the protocol used by the IMS transaction.
• The program specification block (PSB) for the Listener does not include the ALTPCB label.
• The IMS transaction invoked by the Listener does not specify the MODE=SNGL parameter on the IMS TRANSACT macro in the IMS database manager definition. See the z/OS Communications Server: IP IMS Sockets Guide for information about restrictions on application programs.
• The IMS transaction invoked by the Listener was not defined to the IMS transaction manager as a multisegment transaction.
• The IMS transaction invoked by the Listener is an IMS conversational transaction or executes in a remote Multiple Systems Coupling (MSC) environment.