This article applies to selling in: United States

Error 6000: Date Is Illegal for Leap Year

Date is illegal because the month of February has only 29 days in the leap year Year.

This error occurs when you indicate a non-calendar date. For example, there are only 29 days in February in a leap year. Leap year occurs every four years. The year 2004 was a leap year. Other leap years include 2008 and 2012.

To resolve this error, you should:

  1. Modify your file to include valid calendar dates.
  2. Save your changes.
  3. Resubmit your file.
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