> ## Documentation Index
> Fetch the complete documentation index at: https://jiffyscan.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AA93: Invalid PaymasterAndData Format

> Addressing formatting issues in the paymasterAndData field

<Note>
  The paymaster contract address is specified in the first 20 bytes of `paymasterAndData`.
</Note>

The `paymasterAndData` field in your user operation has an incorrect length.

## Resolution Strategies

1. Field Formatting:
   * Ensure `paymasterAndData` is either not set or at least 20 bytes long

2. For Paymaster Service Users:
   * If using a provider like JiffyLabs and encountering this error, [contact their support team](https://t.me/JiffyScan)