Need to understand why we always use separate Setids for Foreign Currency BU Ledgers and Ledger Grou

Hi,

We have defined ACTUAL Detail ledgers under 2 setids- MASTR and MULTI

MASTR setid is used for ACTUAL ledger for the BUs that have USD as base currency and MULTI is being used for all foreign BUs

The corresponding Ledger Groups also have MASTR and MULTI Setids.

The MULTI setid Ledger group has LOCAL Ledger as primary and ACTUALS as secondary where translation is being done.

The Multicurrency processing- revaluation and translation all are done under MULTI setids.

Though the results look fine and we are not facing any issues, but I still need to understand why we always have different setid for foreign currency ledgers.