EntryPoint Errors

The ERC-4337 EntryPoint returns some helpful errors that you may receive when sending user operations.

Bundler error codes often are accompanied by an additional AAxx code provided by the EntryPoint to give additional guidance.

AA1x error codes relate to creating an account
AA2x error codes relate to the sender of the user operation
AA3x error codes relate to paymasters
AA4x error codes relate to verification generally
AA5x errors relate to actions after the user operation was executed

Updated about 1 year ago