Glad the solution worked for you. While we are on this topic, I would also like to suggest using async which apps script has added in natively a while after this post. which could also help

All the solutions here seem to not work for me. I was still getting a hook repeat if I can call it that, but the below solution worked for me. For those still struggling hope this helps.var response = { "statusCode": 200, "headers": {'Content...