Period Close
There is a 'Period Close' option under the Finances main menu. It closes the period and creates a file in the format you accounting system needs. Every line item on that report matches 1:1 with the Transactions by GL page also under finances. Once the period is closed some things (like changing the GL on a transaction) is no longer allowed if the transaction has already been booked.
Under Finance > Period Close, enter the date range of the period you want to close in the Opening and Closing Day fields (e.g., Daily, Monthly)
Check the radio button for the Do a Preview (Don’t Close) option to view a soft close export file so that you can review and make changes, if appropriate.
Once you have reviewed the soft close, return to Finance < Period Close, select the desired date range and select the radio button to Close the Period (cannot be undone).
Once the Period has been closed, you can download the two documents that are generated by Core (summarized vs. detailed); the one labeled as Summarized will contain the same entries as the Transactions by GL report.
NOTE: If the Close the Period step is not completed, transactions can still be modified/edited, which will result in the Transactions by GL, Itemized Transactions or Period Preview to vary. To avoid this, the best practice is to do a final close of the period once finances have been reviewed and are ready for day/month end.