Rejected as duplicate but we only have one copy in our database?

[jeanmarc]

I got a reject that says "Submission must not be a duplicate of a previously accepted submission." but we have not submitted another return for this client. When a return has been previously submitted to the IRS, I remember the message reading differently. Could this new message mean that someone filed another return using the same SSN at another office that also uses ProSeries?

[Just-Lisa-Now-]

That means someone using an Intuit product (even Turbotax) already filed a return in that SSN.

[taxes96786]

This usually happens when the client claims a dependent who has already file a return. Is it possible this is the case with your client?