The KEYCOMPARE keyword specifies that key comparison should be performed to determine whether the list entry should be processed. Key comparison can request that the designated list entry be equal, less than or equal, or greater than or equal to a specified entry key value.

Entry key comparison is meaningful only for list structures allocated in a coupling facility of CFLEVEL=9 or higher. If the structure was not allocated with keyed list entries, the KEYCOMPARE keyword is ignored.