If you receive the following error in SAS 9.4M5 and later, you need to decrease the setting for SAS system option FILEBUFNO.
The default setting for SAS system option FILEBUFNO is FILEBUFNO=5. Depending on the job, you might need to change the setting to 1, 2, 3 or 4.
For more information, see FILEBUFNO= System Option: z/OS in SAS® 9.4 Companion for z/OS, Sixth Edition. This system option is valid in a configuration file, at SAS Invocation, an OPTIONS statement, and a SAS system options window.