ReleaseCharacter
The ReleaseCharacter group identifies optional configuration related to the ISX segment and the Release Character definition that will be used to indicate that the characters following it should be interpreted as the data value, not as a delimiter used for syntax and parsing.
Specify the DefaultReleaseCharacter to define a release character syntax when the ISX01 value is missing and the X12 default syntax should not be used. Specify the OverrideReleaseCharacter to define a release character syntax to override the ISX01 value.
DefaultReleaseCharacter – default release character syntax
OverrideReleaseCharacter - default release character syntax ISX01