# Cancel a transfer

Transfers may be cancelled up until the transfer has been processed and funds converted. Cancellation is final — it cannot be undone.

{% admonition type="info" name="When can a transfer be cancelled?" %}
A transfer can only be cancelled programmatically via the API if it meets all of the following criteria:

- The transfer is not in funds_converted or later state.
- There are no processing problems with the transfer.

If the transfer does not meet these criteria, the API will return a 409 Conflict error with the code transfer.cancellation.not.allowed.

For more information about transfer states, see Tracking Transfers.
{% /admonition %}

Endpoint: PUT /v1/transfers/{transferId}/cancel
Security: UserToken, PersonalToken

## Path parameters:

  - `transferId` (integer, required)
    The transfer ID


## Response 404 fields

## Response 409 fields