# PairDeviceToRegisterInput

input type

Input for pairDeviceToRegister.

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `deviceId` | [ID](/types/#scalars) `ID!` | yes | No further notes. |
| `registerId` | [ID](/types/#scalars) `ID!` | yes | The Register to serve — tenant-scoped + ACTIVE. |
| `expectedRevision` | [ID](/types/#scalars) `ID!` | yes | The device revision the caller read. |

## Used by

- [pairDeviceToRegister](/reference/device-fleet/pairDeviceToRegister/)