Solved
Customer data upload
We have just moved over from Mailchimp to Klaviyo & are currently moving over customer data that has been captured during the move.
Out of 60 customers, 40 of them failed to upload due to a formatting erro which I believe to be the format of the dates. Once I make the changes to this data & upload to Klaviyo, how can I overwrite this duff info (date format being written wrong way) to ensure it doesnt happen again?
