IBM 3270 Manual page 194

INDCU
INDCU025 Embedded blanks are not
allowed in long names
Explanation: You are not allowed to use blank
characters in long names. Only letters (A-Z) and
numbers (0-9) can be used.
User Response: Correct the long name. If you
need to restore the previous value, move the
cursor off the field. The previous value and
message INDCUOOl will appear.
INDCU026 Only letters (A-Z) and numbers
(0-9) are allowed
Explanation: You can enter only letters (A-Z)
and numbers (0-9) in the value for this field.
User Response: Correct the name. If you need
to restore the previous value, move the cursor off
the field. The previous value and message
INDCUOOl will appear.
INDCU027 Cannot customize system with
current values
Explanation: You- have pressed PF3 to create
your system diskette and a problem exists with
your current responses. The message appears
with message INDCU028.
User Response: Wait for message INDCU028 to
appear and follow the user response for that
message.
Appendix A. Messages A-9