The following issue has been identified and subsequently replicated by MYOB Support in EXO Business versions 2016.2
Before upgrading your clients please take into consideration the following issues especially if the site has specific requirements in these areas.
As always we recommend that thorough testing in a non-live environment is undertaken before commencing an upgrade.
Issue
Getting access violation error when contact screen setup with custom view uses Extra field in Contact table.
Workaround
None.
Resolution
Attached to Problem ticket 136747336284 for resolution in a future release.