Hi ,

Thanks for using Sage City.

Apologies for any delay in responding to your query.

If you have fully saved the bank reconciliation you are unable to edit/delete/void this. You would need to account for the date/error going forward on your next reconciliation 

please see the following guides on reconciling your bank available on our help centre here;

help.accounting.sage.com/.../SearchResults.html

Regards,
Rob
Sage UKI