The closing balance report is produced when a reconcile is run, it can also be produced from historic reconciles as well as a preview being run. As a result it is available from various locations within ABR and Business Central.
Closing Balance Report
This will automatically be produced as a pdf when a reconcile is run.
Closing Balance History Report
You can also reproduce a closing balance report by going to back to previous reconciles. There are various methods of doing this.
Locate the historic reconcile you wish to print a closing balance for and open the action menu, You can select the option to print the closing balance report from here.
The reconcile history page has an action to print the closing balance report
Closing Balance Preview Report
A closing balance preview can be run from the ABR Reconcile page by selecting the "Closing Balance Preview" action in the action menu as shown below.