ICU1006 INVALID VALUE SPECIFIED ON EXTRA STATEMENT

Explanation
One of the following conditions was encountered
on an EXTRA-LOCAL, EXTRA-CROSS, or EXTRA-REMOTE control statement
for the key generator utility program: The first through fourth characters of the value for label-base
were not alphameric.
The fifth through eighth characters of the value for label-base
were not numeric.
An incorrect number of additional keys was requested.

The control statement containing the error precedes this
message.

System action
Processing ends for this control statement. Processing
continues for any other control statements.

Programmer response
If the alphameric portion of the label-base
is incorrect, supply a valid value on the control statement. A valid
value consists of 4 alphameric characters. Valid alphameric characters
are A through Z and 0 through 9.
Otherwise, correct the numerical
portion of the label-base and/or the number of additional keys requested
on the control statement. The sum of these two values must not exceed
9999.
Rerun the key generator utility program, specifying the
CHGK function on the EXEC statement and providing the corrected control
statement.

Source
Cryptographic Unit Support Program (CUSP)