Entering G/L Line Items for Accounting Transactions in the General Ledger 
When you have made your entries in the document header, enter the G/L account line items.
For more information on entering data in the document header, see
Entering Document HeadersThe bottom line of each screen contains the following fields for the line items:
You can hide fields by selecting Environment
® Current settings ® Editing options in the General Ledger menu. For more information, see Setting Editing OptionsThe entries that you make in the bottom line of the line item entry screen determine which entries you can make in the next line item that you enter. The following figure shows how this works.

When you enter a G/L account line item, the posting key and the G/L account determine which fields are displayed on which screen and which fields are required or suppressed. For more information see
Screen Layout for Posting: Field StatusFor more information on the fast entry of G/L account items, see
Fast Entry of G/L Account Line Items.See also:
Posting Key (General Ledger) G/L Account Number (General Ledger) Which Entry Fields are Displayed in G/L Account Line Items (General Ledger)? Additional Account Assignments (General Ledger) Business Area (General Ledger) Additional Data for G/L Account Items (General Ledger)