we have a requirement to display OBS in list view for a custom object. Also it should get populated automatically whenever someone updates the OBS. To implement this solution we created a custom dynamic lookup field and tried to write a trigger on the custom table(though it's got advisable from CA). But on update event trigger fires and update the last value in the custom attribute instead the current one. This is because, as far as i know, custom object OBS association updates happens later. we don't want to write trigger on prjobs_association table.
If any one has any idea please let me know.