When using the Activity Tracking module, selecting the Order link will error on Invoiced Orders.
It works fine from Order Locator.
It looks like Activity Tracking is calling maint, where Order Locator is calling history_maint.
Activity Tracking: <a class="qbe-link-field" onclick="Astea.Grid.NavigateGridCell('form_asp/service_request_maint.shtml?action=retrieve&where_cond=SV2304300160@@1',10,false,10)">SV2304300160</a>
Order Locator: <a class="qbe-link-field" onclick="Astea.Grid.NavigateGridCell('form_asp/service_request_history_maint.shtml?action=retrieve&where_cond=SV2304300160@@1&WebVar_goback=order_locator',0,false,0)">SV2304300160</a>
Is this a bug, or intended behaviour?