The Excel formula `I_EOL_FINPDE_START_PDE` retrieves the start date of a general ledger financial period from Exact Online. Parameters: - `divisionCode`: division code. - `reportingYear`: financial year. - `reportingPeriod`: financial period. Returns: start date of the general ledger financial period. Use [[I_EOL_FINPDE_START]] to retrieve the start date of a financial period using a calendar date instead of year and period.