First check that no other user is currently reconciling the account. If you have confirmed this, the bank reconciliation screen has become locked — most likely because Dimensions crashed during a previous reconciliation. To resolve this, clear the multi-user flags:
Login as the ‘sa’ user or a user with an equivalent master security profile.
Confirm all other users are logged out of Dimensions. Click the System tab, then in the Security section click User Records.
Take a recent backup of your Dimensions database. Contact your IT service provider if you are unsure how to do this.
Click the System tab.
Click Data Utilities.
Click Clear Multi-User Flags.
Tick All Multi-User Flags.
Click the green tick. Read any messages that appear during the process.
Once complete, open the bank reconciliation screen as normal.