# AA20 account not deployed

`AA20 account not deployed` is an ERC-4337 EntryPoint error that means the user operation has no `initCode` but its `sender` smart account is not deployed yet.

An `initCode` was not specified, but the `sender` address (i.e. the smart account) is not deployed.

## Possible solutions

* If this is the first transaction by this account, make sure the `initCode` is included in the user operation.
* If the smart account is already supposed to be deployed, verify that you have selected the correct `sender` address for the user operation.