The standard return code numbers are documented in the client manual. I add some verbiage in the ANS1512E message description in ADSM QuickFacts.
Wacky numbers such as the -1073740972 you cite are usually the result of improperly written customer PRESchedulecmd or POSTSchedulecmd commands, typically due to the failure to assign an exit value such that some random number ends up in the return code. Richard Sims
