> For the complete documentation index, see [llms.txt](https://docs.bool.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bool.network/evm-ecosystem/getting-started/arbitrary-message-transmission.md).

# Arbitrary Message Transmission

The blew flow scheme depicts a general pattern of transmitting a message across EVM-compatible blockchains where `Consumer` represents a user's smart contract built on top of Bool Network which must have implemented the standard base contract [`BoolConsumerBase.sol`](/evm-ecosystem/smart-contracts/boolconsumerbase/boolconsumerbase.sol.md).

<figure><img src="/files/5VsplTdoMVweUZM4ryyJ" alt=""><figcaption><p>Lifecycle of a cross-chain message across EVM blockchains.</p></figcaption></figure>