Generate PIN via Zapier

I have seen a few similar topics regarding Nuki and Zapier, but found no solutions. I’m hoping this post will lead to one, because I am looking for a way to generate PINs automatically via Zapier. Do you know how?

I have read through this page:

and this one:

and then also sent these pages to ChatGPT

Somehow I still don’t know what to do in Zapier to make it happen. Can you help? Would be very appreciated!