Import Sales Orders - MTO stock items fail with error "The Free Stock inventory source cannot be selected because the line is marked for production or purchasing."

Hello,

I am importing Sales Orders.  Following the exact steps and data of my import scenario, I can manually enter the Sales Order via the standard interface.  However, my import scenario fails for any stock item that is set as a Make To Order item.  I have added a line to uncheck the Mark For Production box on the sales order line in my scenario since that is what the error message says. “The Free Stock inventory source cannot be selected because the line is marked for production or purchasing.”

As a more specific test, I changed the stock item to “No Default” for “Dflt Mark For”, but left the MTO box checked.  I still get the same error.  So it must be the check box on the stock item for “Make to Order”

If I uncheck the Make To Order Item box on the stock item, the sales order imports properly.

I am unsure how to move past this error and any suggestions would be appreciated!

Thanks!