Grove NFC on Particle

Hello, i just got an NFC grove sensor to add to my argon. How can i make my boron my NFC tag and get confirmation from it?

Have you tried looking in the docs before asking this question here?
https://docs.particle.io/reference/device-os/firmware/boron/#nfc

Yes i actually saw that documentation, but the thing is the NFC sensor are out of stock on particle. i got the Grove NFC module PN532 how can i test the NFC grove without having the sensor? can it work with like a key fob?

You asked

and the link I provided in my post above does answer exactly that.

Do you mean the NFC antennae with uFL connector? I’m not aware of Particle selling NFC sensors (I guess you mean readers).
But if you mean antenna, you can use any 13.56MHz version with uFL connector like this one