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@KimSchwinge wrote:

I have a married couple that did not live in the same state. One was exclusively NY and one exclusively OK.

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If one lives exclusively in NY and the other OK, agree your clients can file MFS for state returns. 

However, this will cost you 3 credits unless Intuit grants you an exception.  Since both NY and OK are piggyback states and the federal return will be filed as MFJ, both states' MFS returns will need to be filed on paper.