ICP129I INVALID SHARED VALUE. MUST BE Y OR N

Explanation
A character other than Y or N was found as the keyword value in
the SHARED parameter of the CNTLUNIT statement.

System action
IOCP continues to validate and check the syntax of the remaining
statements. However, it does not generate an IOCDS and it does not
produce configuration reports. 

Programmer response
Correct the keyword value.