Fob / keypad authorisation proces without the pin code

Hi. I managed to create a custom ble device that connect with a lock as a normal user. It is meant to become a custom remote controller. Interacting with the lock is fine, no problems there and thanks for the api.

Current challenge: I hardcoded the pincode of the lock in my device. I would like my device to connect with the lock via the app. In the same way the fob / keypad seems to do.

Is there a description on how my device need to identify or communicate to able to connect to the lock with help of the Nuki App?

Lock = Nuki 5th gen

The fob / keypad do not connect with the App during regular operation. The Nuki app only facilitates the initial setup and pairing of this products. You can not use this process for a custom product that you developed on your own. i.e. you need to develop your own method on how to facilitate this process (an own app, some input method on your device like buttons / nfc reader / scanner, hardcoded, …).