IL1120-2000-1 e-file error

Error message

Form IL-1120 (Rule IL1120-2000-1): If IRS-M3 Schedule M-3 Part II, Line 12, Column (a), (b), (c), or (d) are not zero, then Form IL-1120 Step 1 Line F (Fed Sch M-3) must contain an X. Otherwise Form IL-1120 Step 1 Line F (Fed Sch M-3) must not contain an X.

Solution

Review Federal Schedule M-3, Page 2, Part II, Line 12, columns (a), (b), (c), and (d).
If Line 12 has an amount in any column, go to
Organizer
States
Illinois
General Information
and mark
Federal Schedule M-3, Part II, Line 12 has been completed
.
If Line 12 is blank for all columns, go to
Organizer
States
Illinois
General Information
and unmark
Federal Schedule M-3, Part II, Line 12 has been completed
.
Recalculate the return, review Form IL-1120, Step 1, Line F, and create the e-file again.