XTSO - XTSO and XVEX

XTSO001E TSO services are not available: Informational only.
XTSO002E REXX/TSO environment not available: Informational only.
XVEX001E <cmd> <type> valid only when executing under REXX API interface: Informational only.
XVEX002W <cmd> <type> invalid, no fields are defined for this screen: Informational only.
XVEX003E <cmd> <type> failed, <reason>: Informational only.
XVEX004E Field <fldname> not found: Informational only.
XVEX005E Invalid chars in stem variable name - <errstem>: Informational only.
XVEX006E <parmname> parameter required by the <cmd> <type> command: Informational only.
XVEX007E <opt> option not valid for field type <type>: Informational only.
XVEX008E <opt> option invalid, <fldn> field not defined with internal value: Informational only.
XVEX009E <opt> option invalid, <fldn> field internal length not valid: Informational only.
XVEX010E <opt> option invalid, <fldn> field data length not valid: Informational only.
XVEX011E Invalid <kwd> keyword value - <errval>: Informational only.