Select Line Type
The Select Line Type drop-down on the AP Company Parameters form, GL Expense Posting tab.
From the drop-down select the line type for which to set the GL line level description.
0-Expense
1-Job
2-Inv
3-Equip
Then use the selection box (to the right) to select the description items to use for the selected line type.
Repeat the process for each of the line types.