> ## Documentation Index
> Fetch the complete documentation index at: https://docs.debridge.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Claiming an Order

> Claim flow for unlocking source-chain assets after fulfillment.

Each `orderId` is deterministic and uniquely identifies an order. To successfully fulfill the order, the solver must use the same parameters that were
specified when the order was originally created. After successful fulfillment, the solver creates another transaction to trigger a cross-chain message
via the deBridge Messaging Protocol (DMP) to the source chain changing the [order
state](/dln-details/integration-guidelines/order-creation/order-tracking-api/order-states) to `SentUnlock`. This message unlocks the input reserve
assets, allowing the solver to claim them.

If any parameters, such as the token amount or beneficiary, differ from the original order, the resulting `orderId` will not match. In such cases,
the solver’s deposit cannot be matched to a valid order on the source chain, rendering the fulfillment ineffective and ensuring the input funds
remain locked and secure on the source chain.

```mermaid theme={null}
sequenceDiagram
    actor Solver
    participant DlnSource
    participant DMP
        
    rect rgba(240, 240, 240, .15)
      note right of Solver: Send Unlock
      Solver ->> DMP : sendCrossChainMessage(orderId)
      activate DMP
      DMP -->> Solver : ack
      DMP ->> DlnSource : unlockOrder
      deactivate DMP
    end
    rect rgba(230, 230, 255, .15)
        note right of Solver: Claim Input Assets
        Solver     ->> DlnSource : claimOrder(...)
        activate DlnSource
        DlnSource -->> Solver     : claimReceipt
        deactivate DlnSource
    end
```

To finalize the process, the solver calls the `DlnSource.claimUnlock(...)` method on the source chain. This updates the order status to
`ClaimedUnlock`, and the initially locked order input reserve assets are transferred to the solver. At this point, the order is considered
claimed and fulfilled and its state is `ClaimedUnlock`. Affiliate fees are also automatically paid out on EVM chains, and they are ready
for withdrawal on Solana.