COBRT143 Rewrite/delete in sequential mode not preceded by successful read (Recoverable)

You have failed to do a successful read on a sequentially accessed file trying a REWRITE or DELETE on some of the information contained in that file.

Resolution:

If the previous read was successful then perform a read on the relevant file before you retry the unsuccessful REWRITE or DELETE operation. If the previous read was also unsuccessful close the file, execute a STOP RUN statement and then recode your program before you next run it.