I'm getting the message "Query contains ambiguous outer joins."

I'm getting the message "Query contains ambiguous outer joins."

This can occur when you try to run a query with certain combinations of joins. For an example of what causes the conflict and information on how to resolve it, search the Microsoft Knowledge Base for article Q124937, "Explanation of 'Ambiguous outer joins' error message." For information on accessing the Knowledge Base or other online technical resources, click .