501: Invalid data set name "dsname". Use MVS Dsname conventions.
Explanation
The data set name violates one of the MVS™ file naming conventions and cannot be used to reference a data set at the server.
System action
The data set is not sent. FTP continues.
User response
Rename the data set in compliance with MVS data set naming conventions. For more information about MVS data set naming conventions, see the z/OS Communications Server: IP User's Guide and Commands.
System programmer response
None.