# recall_on_internal_transfer · FT4 Rell API · Chromia Docs (concept)

> @extendable function recall_ on_ internal_ transfer(sender: account , transfer_ tx_ rid: byte_ array, transfer_ op_ index: integer) Extendable function tha

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.assets/recall_on_internal_transfer/

FUNCTION

# recall\_on\_internal\_transfer

```signature
@extendable function recall_on_internal_transfer(sender: account, transfer_tx_rid: byte_array, transfer_op_index: integer)
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/assets/transfer.rell#lines-47)

Extendable function that defines how to recall a transfer that was erroneously made
toward to a non-existing account, if that account should not be registered.

Developers should not generally extend this function, as it is handled by the account
registration module. Importing the corresponding module should be enough.

**Parameters**

* **sender** — the account that initiated the transfer
* **transfer\_tx\_rid** — the transaction where the transfer happened
* **transfer\_op\_index** — the operation in which the transfer happened

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.core.assets/recall_on_internal_transfer.html)Generated API reference, mirrored from the live docs