EntryPoint Revert Codes

Learn about the revert codes returned by the ERC-4337 EntryPoint

Bundler JSON-RPC error codes are often accompanied by an additional AAxx code provided by the EntryPoint.

  • 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
  • AA5x errors relate to post execution actions
  • AA9x error codes are general and not related to a certain theme