Why did my Corporate Order birth date field error?

For the corporate order upload, it is very important to make sure your format is the same as the corporate order csv sample. In the sample, the birth date format is written as YYYY-MM-DD. Unfortunately some versions of excel reformat the date field to YYYY/MM/DD, which is not an accepted format in the corporate order upload. 

If you are having an error, you can use another version of excel, or google sheets, to check to see if your birthdate is formatted incorrectly.