Wow! You’re absolutely correct!
Because I use my iPhone in Norwegian, with translation that can be confusing, I chose the wrong action just like you were thinking.
Changed it to
call service (
utfør tjeneste in norwegian) and it worked instantly
And when choosing the right action I also got to pick the service
shopping_list.add_item from a list instead of writing it.
Now it updates my shopping list
Thanks for sharing iCloud-link (that I didn’t need ) and for taking time to help me with great detail!
By the way: Is there a way to make Siri ask me something else than “What should stringAnswer be?”