You can click this thread’s title and vote at the top.
You mention API support but in case you weren’t aware, it’s not hard to either have an Asana Services Partner (like me!) do this for you or show you how it can be done quickly, even if there are many to change (using built-in Asana tools).
But if you want to have a custom software solution built to do this, some Partners offer that service; I’d recommend @Bastien_Siebman in that case.
Thanks,
Larry