Flex Accounting
Recently upgraded from E1 8.12 to E1 9.1. Flex accounting is used in Sales Update (R42800) for AAIs 4230 and 4220. The sub-account portion of the G/L account is comprised of several Cat Codes on the F4102 record of the detail line item. The Financial BU unit (EMCU) and Business Unit (MCU) on the Sales Order detail line (F4211) are different. the processing option in R42800 is set to use the Financial BU for all AAIs except Inventory.
When the Sub-Account is built, the lookup to the F4102 looks to be by the Financial BU and Item; in E1 8.12 it looks like it was using the Business Unit and Item.