By default, segment names and field names in Master Files must be in uppercase. To enable mixed-case names, use MNTCON MATCH_CASE ON.
The feature to support mixed-case and NLS characters in the Master File is enabled by the following command in the EDASPROF, user, group, or service profile:
MNTCON MATCH_CASE ON|OFF
Is the default. Segment names and field names in Master Files still must be uppercase, and Maintain refers to them in mixed-case or lowercase without error.
Means that mixed-case and NLS characters will be respected. Developers must be consistent in their references to named components in terms of the case used. Components are:
With the feature enabled (MNTCON MATCH_CASE ON in a profile):
Note: With the feature off, there should be no issues running previously-developed applications.
With the feature enabled, previously-written applications would need to be reviewed, then updated (to keep the case, class, and other names consistent), and finally redeployed.