> For the complete documentation index, see [llms.txt](https://0xgaslesss-organization.gitbook.io/0xgasless-sdk-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://0xgaslesss-organization.gitbook.io/0xgasless-sdk-docs/introduction/ethereums-eip-4337-account-abstraction/how-account-abstraction-works.md).

# How Account Abstraction Works

**Now, let's explore how the Account Abstraction process works:**

#### 1. User Initiates a User Operation

* **User**: A user creates a User Operation, specifying the destination smart contract, function to call, and any required parameters.
* **SDK**: The user may use your SDK to create and send User Operations.

#### 2. User Operation Sent to Bundler

* **User**: The user sends the User Operation to the Bundler's address, as specified in the User Operation.
* **Bundler**: The Bundler receives the User Operation and validates it.

#### 3. Bundler Processes User Operation

* **Bundler**: The Bundler processes the User Operation, which includes estimating gas fees, executing the transaction, and updating the blockchain state.

#### 4. Execution of Smart Contract Code

* **Smart Contract Account**: The smart contract specified in the User Operation receives and executes the requested function, updating its state as necessary.

#### 5. Transaction Result Returned

* **Bundler**: The Bundler collects the result of the User Operation's execution.
* **User**: The result can be retrieved by the user through your SDK or directly from the blockchain.

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