When the system receives an error (for example, after a Save), it attempts to set focus on the
relevant widget, which might require flipping to a different tab page. If the error
relates to a list (grid or scroll) the system might not choose the tab page you would
prefer. In that event you can control the tab page that should be opened by defining the
TabMenu function overrideErrorTabPage_<LIST_NAME>()
.
Example:
function overrideErrorTabPage_BPA() {
return 'bussProcessAssistantStepPage';
}