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Amount Adjustment

Developing

Sandbox

https://sandbox-payments-{{account_name}}.datmanpay.com

POST

/api2.php

Amount Adjustment API

Overview

The Adjust Amount API allows you to modify the authorized amount of a pre-auth transaction before capture. This is typically used in scenarios where the final charge differs from the initially authorized amount due to changes such as discounts, additional fees, or partial order fulfillment.

This API is used after a successful pre-authorization, when the merchant needs to increase or decrease the authorized amount prior to capturing the funds.

Request

Authorization

API Key

Add parameter in header

api_token

Example:

api_token: ********************

Query Params

Header Params

Body Params application/json

Examples

Responses

🟢200Success

application/json

Bodyapplication/json

Request Example

Shell

JavaScript

Java

Swift

curl --location --globoff 'https://sandbox-payments-{{account_name}}.datmanpay.com/api2.php?action=adjustment' \
--header 'api_token: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
    "xref": "O<order_id>M<merchant_id>T<transaction_id>",
    "amount": "1",
    "merchant_id": "63155480",
    "split_fee": [
        {
            "partner_merchant_id": 63155428,
            "type_id": 5,
            "value": 4.00,
            "value_type": "amount"
        },
        {
            "partner_merchant_id": 63154766,
            "type_id": 1,
            "value": 5.00,
            "value_type": "amount"
        }
    ]
}'

Response Example

{}

Transaction Lookup

Capture Payment

Amount Adjustment

Amount Adjustment API#

Overview#

Request

Responses

Amount Adjustment API

Overview