Isssues with PER_ASG_ATTRIBUTE_DATE2 database in Fast Formula

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Hello experts,

I've successfully validated the following fast formula:

default FOR PER_ASG_ATTRIBUTE_DATE2 is '0001/01/01 00:00:00'(DATE)

dataesodabilita = PER_ASG_ATTRIBUTE_DATE2

return dataesodabilita

It works as it should, but I need to solve the following issues:

1) There are some employees with PER_ASG_ATTRIBUTE_DATE2 null, but when launching the fast formula it displays 0001/01/01 00:00:00 instead of null value. In this case I would like the FF returns a null value and not the 0001/01/01 00:00:00 date format.

2) The Fast Formula returns the date in the following format:

2030-07-05T00:00:00.00Z

Is there a way to return the following format: 2030-07-05?