ReRun the same script

I have a server action that runs in a condition, on the client side, I have it set to on success rerun the same script over and over again.
That all works well, however to stop the script when I know it is really done, I have set a server connect response code of 204 which stops the script sending the success event.

This has me wondering what codes I can use on my server scripts that App Connect listens for, if success is 200, then what code is used for say the done dynamic event.

Could this list be completed, and/or corrected if I already have some codes wrong, I assume some of these are specific to Wappler / App Connect / Server Connect, but I assume some are just the universal status codes.