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

# 2025-09-03 Changes

**Release Date:** 03/09/2025

## **Overview**

This release includes updates on external references within the Payouts API and changes to TZS transaction limits.

***

## **1. Unique Third-Party Reference Check**

You can now include flags in your disbursement request to prevent processing duplicate payouts based on `third_party_reference_1` and `third_party_reference_2`.

To enable this check, set the following fields to true `1`:

```json theme={null}
{
    "is_third_party_reference_1_unique": 1,
    "is_third_party_reference_2_unique": 1
}
```

When these fields are set to true(1), any payout request with duplicate third-party references will be rejected. If the flags are not included, the transaction will proceed as normal.

These fields are optional and can help improve the safety and integrity of your payouts.

Sample Disbursement Request with Duplicate Third-Party Reference

```json theme={null}
{
    "client_id": "Axxxxxxxxxxxxxxxxxxxxxxxxxxxxxz",
    "salt": "justrandomstring",
    "sender": "John.co",
    "timestamp": xxxxxxxxx,
    "signature": "2193dxxxxxxxxxxxxxxxxxx5d5807",
    "params": {
        "Orange": [
            {
                "phone_number": "22178xxxxxxx"
            }
        ],
        "amount": 100,
        "city": "Kenya",
        "client_callback_url": "https://webhook.site/",
        "country_id": 9,
        "currency": "XOF",
        "description": "Testing email",
        "email": "johnd@example.com",
        "first_name": "Test",
        "is_third_party_reference_1_unique": 1,
        "is_third_party_reference_2_unique": 1,
        "last_name": "Tester",
        "line1": "123",
        "mobile": "2217xxxxxxxx",
        "payment_method_type": "Orange",
        "payment_reference": "SENXOFORANGEPAYOUTTEST2",
        "postal_code": "000",
        "third_party_reference_1": "SENXOFORANGEPAYOUTTEST",
        "third_party_reference_2": "SENXOFORANGEPAYOUTTEST"
    }
}
```

**Sample Response**

```json theme={null}
{
    "success": false,
    "message": "We apologize as we were not able to process your payment request. Please try again later.",
    "data": {
        "error": true,
        "message": "Duplicate third_party_reference_2 was found!"
    }
}
```

**2. TZS Transaction Limit Update**
We have updated the transaction limits for TZS (Tanzanian Shilling) payouts.
These new limits are now in effect and apply to all transactions made in TZS.

Please review and adjust your integration accordingly to ensure compliance and avoid failed transactions.

For full details on the updated limits, refer to the [API documentation](/transaction-limitsv4).