Trying to set a new flow where an email is triggered following a forms response, but depending on the answer to a specific question is sent to either one person or another. But I cannot get the flow to work as it keeos giving me an "enter a valid integer" error under the response ID of the Get response details step.
screenshot below:

would be grateful if anyone can help - I am SURE there is something simple I am doing wrong!
thanks in advance!
dr_nick