It is possible to filter by acf meta key ?

hello

Did you add new field to product or to order?

Were you able to export this field ?

thanks, alex

i have added in the product.

Were you able to export this field ?

no

open section “Setup fields”
scroll down to “Products”
click button “Setup fields”
select your field in first dropdown (without prefix “_” )
fill column name
click “Add”
close popup
press Preview