Invocation transactions are actions that allow users to call smart contracts on a blockchain. These transactions serve as a way to interact with decentralized applications (dApps) that run on platforms like Ethereum or Binance Smart Chain.When a user wants to execute a specific function in a smart contract, such as transferring tokens or participating in a decentralized finance (DeFi) protocol, they create an invocation transaction. This transaction contains the necessary data to specify the function being called and any required parameters.Once submitted to the network, the transaction is validated by miners or validators. After approval, the smart contract executes the requested function, and the results are recorded on the blockchain. This process ensures transparency and trust, as every invocation is publicly verifiable.Overall, invocation transactions are fundamental for enabling user interaction with smart contracts, allowing for a wide range of applications—from financial services to gaming and beyond.