First of all, to post a document relating to a previous year, say 2014 when you are in 2015, the relevant posting period should be 'open' in the system. When such a posting is done, the system makes some adjustments in the background:One: the carry-forward balances of the current year, already done, are updated in case the posting affects balance sheet items.

Two: if the posting is going to affect the Profit & Loss accounts, then the systemadjusts the carried forward profit or loss balances to the Retained Earningsaccount(s).

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