# Cancel Buy Offer

Function:

```
public fun cancel_buy_offer<CURRENCY>(
    ledger: &mut TradeLedger,
    offer_id: ID,
    collection_cap: &CollectionCap,
    clock: &Clock,
    ctx: &mut TxContext
)

```

**Description:**

* Allows a buyer to **cancel their buy offer**.
* The locked payment is **returned to the buyer**.
* The buy offer is updated to **CANCELLED**.

**Validations:**

* Only the **buyer** can cancel the offer.
* The offer must **be open**.


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