Save attribute expression as field when export

[CamillaIsaksson]

arcade‌ arcgisonline‌ for export‌ modify attributes‌

In ArcGIS Online I have several attribute expressions (Arcade) that I would like to be able to export to excel, shape or anything, but these fields seems to be temporary. Though, in my feature layer on ArcGIS online I can do "Add Field" and that new field will remain when I export to excel. Can I make my attribute expression fields remain in my feature layer when exporting to other layer such as excel? If not, can I somehow write my attribute expression to an "existing" column trough Arcade? 

Can export "TEST_AddField" but not attribute expressions RMR_Calc and Q_Calc.

[Andrew_Purdon]

Hi Camilla Isaksson‌, have you had any luck or found a workaround? 

[BrittanyBurson]

Hello -- Like Andrew I'm here several months after your initial post, looking for a way to export these "temporary" fields populated via Arcade expressions. If anybody has had any luck into 2020, please share.