MacroName was called by Tsk=task Pgm=program
R15=0x00000004 R00=0xrrnnnnss meaning “Macro=MacroName. R15=0xrr R00=0xnnnn SSM R00=0xss.”
When a failure is detected for a z/OS system macro, the second line of this message reports the value of R00, which is a concatenation of ZosRtnCode, ZosRsnCode, and SSMRsnCode.
The quoted text–“Macro=MacroName. R15=0xrr R00=0xnnnn SSM R00=0xss”–provides diagnostic information to the SDS storage manager. 0xrr is the ZosRtnCode. 0xnnnn is the ZosRsnCode. 0xss is the SSMRsnCode.
For more information, look for ZosRtnCode and ZosRsnCode in IBM documentation.