I’m using ArcGIS Pro 3.3.1. I have an attribute table with a date field. I want to replace some of the values in the field with <NULL>. Using the field calculator, with the Expression Type set to Python, I type None in the space for the new field value. I get Warning 003571 and the value in the table stays the same. I can’t find any way to get <NULL> into the date field. I looked at the Fields view and NULL is allowed for that field.
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Using Field Calculator/Arcade, type "return null" and if the fields are nullable this should work.
Using Field Calculator/Arcade, type "return null" and if the fields are nullable this should work.
That method works, thanks very much.
Even though you do get that warning, the date values are calculated to null.
No, they are not calculated to NULL. They remain unchanged.