HBO0557I Input date `format` is not supported.

Explanation

The date format that is specified in the DEFINE LOOKUP statement is not supported. The following formats are valid:

DATE(MMDDYY)
DATE(YYMMDD)
DATE(MMDDYYYY)

The parser flags an error, the DEFINE LOOKUP statement is ignored, and processing continues.

Response

Correct the date format in the DEFINE LOOKUP statement.