If a problem occurs you should first do some preliminary checks to try and narrow down the cause. You can then try and analyze the problem in more detail using tools such as trace, debug, or diagnostic commands.
A wide range of additional resources are also available for problem
solving, including: forums and newsgroups, IBM Technotes, IBM Developerworks,
and IBM Redbooks. You can also contact your IBM Support organization
as described on the support page at http://www.ibm.com/support/entry/portal/Overview/Software/Other_Software/CICS_Transaction_Gateway .