Error messages

WebSphere MQ produces an error message when a problem is detected. WebSphere MQ diagnostic messages begin with the prefix CSQ. Each error message generated by WebSphere MQ is unique; that is, it is generated for one and only one error. Information about the error can be found in the WebSphere MQ for z/OS Messages and Codes manual.

The first three characters of the names of WebSphere MQ modules are also usually CSQ. The exceptions to this are modules for C++ (IMQ), and the header files (CMQ). The fourth character uniquely identifies the component. These identifiers are listed in Appendix B. WebSphere MQ component and resource manager identifiers. Characters five through eight are unique within the group identified by the first four characters.

Make sure that you have some documentation on application messages and codes for programs that were written at your installation, as well as a copy of the WebSphere MQ for z/OS Messages and Codes manual.

There might be some instances when no message is produced, or, if one is produced, it cannot be communicated. In these circumstances, you might have to analyze a dump to isolate the error to a particular module. The use of dumps is discussed in WebSphere MQ dumps.