I used your suggestion to read that document to figure out the fix.  I will say I would have preferred to have the error that occurs be a custom error class so that I could easily treat those errors differently than any of the other possible errors that can occur during Post.  The provided error message does not make sense to an end user vs the old BDE error, so I needed to provide a custom error message to better inform the user what happened.  The error you provide then gets modified as it bubbles up through your code and you tack on the query object name that threw the error which then meant I had do a Pos string search of your error message to determine if the error thrown was because of another user changing the record which leads to not the cleanest code.