> ## 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.

# Wire Validations & Best Practices

> Best practices to reduce wire validation exceptions and manual review.

Best practices to reduce wire validation exceptions.

## Overview

Lead applies various validation checks on all wire transactions processed through our systems. Validations fall into two categories:

* **Synchronous**: The API returns an immediate error response. The wire object is not created.
* **Asynchronous**: The wire is created but subsequently rejected. A `wire.rejected` webhook fires when this occurs.

## Important Validations

| Validation Type                  | Best Practice                                                                                                                         | Synchronous Rejection |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- | --------------------- |
| `parameters_invalid`             | Ensure all parameters conform to the requirements outlined in the API specification.                                                  | Yes                   |
| `non_sufficient_funds`           | Monitor your originating account balance before initiating wires. Ensure sufficient funds are available before submitting transfers.  | Yes                   |
| `per_transaction_limit_exceeded` | Review your per-transaction limits periodically and contact Lead if your use case requires higher transaction amounts.                | Yes                   |
| `account_number_incorrect`       | Ensure your account numbers are shared accurately with counterparties to prevent formatting errors on incoming wires.                 | No                    |
| `aggregate_limit_exceeded`       | Monitor your aggregate wire volume and review your limits with Lead periodically.                                                     | No                    |
| `creditor_name_mismatch`         | Instruct your counterparties to use the name of the receiving entity as the creditor name when sending wires to your account numbers. | No                    |
| `creditor_address_incorrect`     | Ensure that wires contain a full physical address for the creditor.                                                                   | No                    |
| `regulatory_reason`              | Avoid initiating wires to prohibited countries.                                                                                       | No                    |