> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/messaging/interfaces/isynmessagingreceiver.md).

# ISynMessagingReceiver

## Methods

### executeMessage

```solidity
function executeMessage(bytes32 _srcAddress, uint256 _srcChainId, bytes _message, address _executor) external nonpayable
```

Called by MessageBus

*MUST be permissioned to trusted source apps via trustedRemote*

#### Parameters

| Name         | Type    | Description                                                                    |
| ------------ | ------- | ------------------------------------------------------------------------------ |
| \_srcAddress | bytes32 | The bytes32 address of the source app contract                                 |
| \_srcChainId | uint256 | The source chain ID where the transfer is originated from                      |
| \_message    | bytes   | Arbitrary message bytes originated from and encoded by the source app contract |
| \_executor   | address | Address who called the MessageBus execution function                           |