CQM155E ERROR OPENING `data_set`. RETURN CODE `return_code` ACBERFLG=X"`code`".

Explanation
 An error was encountered while attempting to open
the data set indicated in the message.

User response
 For more information, see z/OS DFSMS Macro Instructions for Data Sets (z/OS 3.1 documentation).

CQM155E ERROR OPENING data_set. RETURN CODE return_code ACBERFLG=X"code".