Positions can be sent to 6 decimal places in the case of variable annuities. In some instances transactions are sent to two decimal places and positions are sent to 4 decimal places.
If positions are being sent daily, then you can end up with many very small reconcile transactions. This can slow performance and litter reports.
When this is the case, you can set a tolerance that will tell Advisors Assistant to only reconcile when the share balance is X shares out of balance. The default is .005 shares which represents 10 cents on a $20 stock.
Changing Share Tolerance
An administrator can change the share tolerance system wide using Admin System Preferences.
If one security is particularly troublesome, then the share tolerance can be changed for just that security on the Modify Security Information Screen in the Interest Bearing / Options / Reconcile Tab.