I've used the Find Unmatched Query Wizard to find data which exists in one but not another table. This has worked for me in the recent past but on the one I ran today, the results are simply showing up as blanks (seeming to indicate that all is matched). However this is not the case as I've purposely unmatched the joined table in order to test. I looked over all of the field types and they match as well. Plus Access isn't throwing any errors. Does anyone have any suggestions for further q/a on this?