How often do I send journal entries to the General Ledger?
Note: When you update journal entries, you help to maintain balances
between the Purchase Order application and the general ledger.
You should send journal entries for all items that you purchase at least once every period. However, for inventory items you can update the general ledger as often as need be by running General Ledger Interface (IC130), followed by running Journal Posting (GL190). Weekly or even daily updating is recommended.
The closing of the period includes running all of the posting programs.