Zentail is compliant with Amazon's Data Protection Policy.
What this means for you is that, consistent with data protection best practices, you may find some of your orders details hashed after the period in which it is necessary to fulfill orders - which is defined as 30 days past the ship date.
The fields that are hashed are:
Customer Address, Line 1
Customer Address, Line 2
Gift Wrap Message
The ship-to fields City, State, and Zip Code are preserved and unchanged.