Copper does not permit due dates earlier than 1901-12-13 20:45:52. Please make sure the due date in your source record is a date that's later than this.
![Ashley Milne avatar](https://static.intercomassets.com/avatars/1113484/square_128/AAEAAQAAAAAAAAQ4AAAAJDY2NTI5YjQ1LTBhODgtNGQyNi04NjQzLWY5MzZiZDRhYThlZg-1490399367.jpg)
Written by Ashley Milne
Updated over a week agoCopper does not permit due dates earlier than 1901-12-13 20:45:52. Please make sure the due date in your source record is a date that's later than this.