You must always enter an amount for a G/L account item. The exact fields that appear on the data entry screen and which of these are ready for input or require an entry when you enter a G/L account line item depends (among other things) on the following factors:
Account group and the accompanying field status group
Posting key entered on the previous screen
Editing options
You can set the editing options by selecting
General Ledger
menu. Editing options can be stored in your user master record.
Screen variant configured for the company code