ACT

The Activity Code (ACTActivity Code - a two-character alphabetic code designating the activity where errors or omissions are reported, and by which you can make inquires regarding data in the DO43. or ACAction Code - a one-character alphabetic code that shows the type of action that has taken place on each line of supply data (Add, Reinstate, Change, Delete).) is a two-character alphabetic code designating the activity to which errors or omissions are reported, and by which you make inquiries regarding data in the D043.