SOLVED' - Sorry, I keep this here so everyone can see how lame I am. - I had a custom mode....I have read in the doc about external GraphQL execution (so I usually do not use GraphQL, but it does not seem too hard based on your example So what I did I mutated a query for me based on your code snipet (I am going to put into the thread) ... but it seems it needs some kind of "mode" or something else, but the doc says if you are skipping this it will use the "default" - but for me this is not working on the playground ) Can you please tell me, help me...what is wrong with my query? Thanks, Darvi

Glad you sorted this out - I think there's an action item here for us to improve the error message when we get a mode that we don't recognize? It should say what the possible modes are, not just that the one you passed in isn't valid.

That would be very helpful for lames like me :D