DETAILS The BLANKUND keyword on BDI was introduced to optionally prevent blanks being converted to zero for numeric variables without BLANK as a missing value. If dates/times were blank a a BLANK missing value was not specified then these would produce an error. The BLANKUND keyword now will convert these to undefined without complaining. EXAMPLE PROGRAM Add Records INPUT = "file.dat" / BLANKUND / WORKAROUND Define missing value BLANK if you want to allow BLANKs on data input