Hello,
after reviewing the case, the Attribute's [Date] accepted data format is yyyy-MM-dd withot hour section, and the GET Customer > Attributes returns the "00:00:00.000" as wrapped by the base date-time format in the DTOs.
Since the data-class is shared among other DTOs, removing the time part would a cause a breaking change and there are other variables where the time part is in use.
Consequently, we've conveyed that to the development team if GET-Customer > Attribute[Date] field can be individually edited to exclude the time part. We will provide further updates as more information is available.
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