I am using the Attribute Assistant tool to automatically generate values for certain fields using the Value Method FIELD_TRIGGER. I'm running into trouble when I want to use FIELD_TRIGGER to change the value of a field to be null. I have no problems writing a rule that generates a regular string or number value, but I can't figure out how to generate a null value.
When I use the Value Info of "Field Value|Field to Change|<Null>", it will put "<Null>" into any string fields I write the rule for, but I don't think this is a true null value because it doesn't work on number or date fields. I have tried countless variations on <Null> (<null>, "<Null>", null, isNull, etc) and none of them work.
After reading the documentation on Attribute Assistant, it looks like FIELD_TRIGGER might only return a number or string value. Has anyone figured out how to return true null values for fields using the attribute assistant?
You can see my specific rule in the attachment.