During the month it's good practice to update your bank rec on a daily basis. To do this:
Go to Nominal Ledger.
Click Bank Reconciliation.
Enter Bank Nominal.
Tick off postings that have cleared on your bank statement.
Once finished, click Save.
This can be done as many times as you like throughout the month.
You will notice that the Post button is greyed out when following the steps above. This is because at this point there isn't a need to enter a statement balance when ticking off and Saving your bank rec. When it comes to posting your reconciliation please follow the steps above followed by:
Take your actual bank statement balance for the date you would like to post your reconciliation to and enter it into the Statement Bal box.
The Difference field will change once the Statement Bal has been filled in. If there is still a difference, more items need to be ticked off, or it's possible there is a posting error. The Post button will become available once the difference is 0.00