Kingdee K3 how to modify the system to cope with the previous month's documents

Users questions: I now deal with the Kingdee K3 system, the accounts payable system is closed to August, the existing one in June of documents must be amended, but the revised documents displayed during a September, what a way to make this document shows period is still anti-Checkout in June
Experts answer:, anti can be posted to June.
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