---
page_type: error
code: 40146
message: "40146: Failed to issue Supervise Instruction due to invalid Reservation state"
level: ERROR
product: TaskRouter
---

## Description

The Reservation is not in a valid state for the Supervise instruction to be used, the Reservation cannot be pending or canceled.

### Possible Causes

- A Reservation has not yet been accepted by a Worker.
- The Reservation has already been canceled.

### Possible Solutions

- Confirm that the Reservation has been accepted by the assigned Worker