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

# Validations

> Validating authorized users.

<Info>
  Beyond the standard required and optional field checks and data type validations, Lead performs additional validations.
</Info>

## Enforced Today

| **Validation**            | **Description**                                                                                                                                                                                     |
| ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Invalid Account Reference | `account_id` must reference a valid account within Lead's system.                                                                                                                                   |
| Invalid Entity Reference  | `entity_id` must reference a valid entity within Lead's system.                                                                                                                                     |
| Effective At Outdated     | `effective_at` must be more recent than the previous instance in which an `account_id`, `entity_id` pairing was provided in the Authorized Users File (if the same pairing was previously provided) |

## Future Enforcements

<Warning>
  Lead expects partners to comply with the below validations; however we do not currently enforce them upon daily processing. We will provide you with 60 days notice before enforcing the following validations.
</Warning>

| **Validation**                                             | **Description**                                                                                   |
| ---------------------------------------------------------- | ------------------------------------------------------------------------------------------------- |
| Nonterminating Update to Authorized User on Closed Account | Updates to existing authorized users *must* include an `invalid` status if the account is closed. |