Allow NULL Code for Coded Value Domain in Experience Builder Table?

[TylerT]

Hello,

I have a feature class that includes a NULLable field with a Coded Value Domain of ['YES', 'NO', 'OTHER'].  In ArcGIS Pro the user is given an addition option to revert back to <Null> as shown here:

In the Experience Builder app table however, the <Null> option is not available as shown here:

The issue is: given the field allows NULLs, I want users to be able to choose NULL, in particular revert back to NULL after a value is chosen.  For example, a field may start with NULL, the user might choose 'NO', then later wish to revert back to NULL, but doesn't have that option with my current configuration in Experience Builder.

The question is:
How can I configure Experience Builder to allow <Null> choice in the Experience Builder table as a Coded Value Domain option, similar to ArcGIS Pro?

Thank you,
Tyler
ArcGIS Pro 3.3
Enterprise 11.3

[Laura]

In map viewer have you allowed it to have 'no value' within the forms?