By default, when running a financial report, the period end date is grabbed from the Period Close window:
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You can change your system settings to allow for a custom text box in your Financial Reports window, instead of using the Period Close window for the period end date.
1. Go under Control Table > System Defaults > General Ledger tab.
2. Untick Use Period Close Date
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A text box will now appear in your financial reports menu, where you can manually enter the period end date for the report header
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