REFUND FAILED

Event Overview

Event Type: REFUND_FAILED
Category: Payment
Description: Refund could not be completed This webhook is triggered when a refund fails to process or its final status could not be confirmed through EximPe.

Delivery Details

Attribute	Value
HTTP method	`POST`
URL	The webhook URL configured on your merchant account’s API credentials
Content-Type	`application/json`
Timeout	10 seconds
Retries	Up to 5 delivery attempts (backoff: 1 min, 5 min, 15 min, 60 min)

Headers

Header	Description
`Content-Type`	`application/json`
`User-Agent`	`Eximpe-Webhook/1.0`
`X-Webhook-Event`	`REFUND_FAILED`
`X-Webhook-Timestamp`	Unix timestamp (string) at the time of the request
`X-Webhook-Signature`	HMAC-SHA256 signature of the request body (JSON string with keys sorted, no extra whitespace), using your API key as the secret. Hex-encoded.

Signature verification (recommended):
Compute HMAC-SHA256(encryption_key, raw_body) where raw_body is the exact UTF-8 request body as received. Compare the hex result with the X-Webhook-Signature header to ensure the webhook is from the platform and unchanged.

Payload Schema

{
    "data": {
        "refunds": [
            {
                "bank_arn": null,
                "comments": "Refund failed or status unknown",
                "order_id": "OD3391756028",
                "refund_id": "RF4762038159",
                "payment_id": "PR6018394572",
                "refund_amount": 1499,
                "order_reference_id": "REF3391756028",
                "refund_completed_at": null,
                "refund_reference_id": "e6b2a9c4d1f847b3a8e2c5d9f0a7b1c6"
            }
        ]
    },
    "version": "2.0.0",
    "event_time": "2026-06-03T14:30:02.854654",
    "event_type": "REFUND_FAILED",
    "sequence_number": "c5d9e203-8a41-4f7b-bf62-913e07ad4c18"
}

Field Specifications

Root Level Fields
Data Object Fields

string

required

Always "REFUND_FAILED" for this webhook event

string

required

Timestamp when the event occurred in ISO 8601 formatExample: "2026-06-03T14:30:02.854654"

string

required

Webhook payload version (currently “2.0.0”)

string

required

Unique identifier for the event instanceExample: "c5d9e203-8a41-4f7b-bf62-913e07ad4c18"

object

required

Event-specific data payload containing refund details

array

required

Array of refund objects containing the failed refund information

string

required

Order ID associated with the refundExample: "OD3391756028"

string

required

Unique refund identifierExample: "RF4762038159"

string

required

Original payment ID that the refund was attempted againstExample: "PR6018394572"

number

required

Refund amount that failed to processExample: 1499

string

Human-readable reason describing why the refund failed or could not be confirmedExample: "Refund failed or status unknown"

string

Bank ARN (Acquirer Reference Number) - null when the refund did not reach the bankExample: null

string

Your reference ID for the order associated with the refundExample: "REF3391756028"

string

Timestamp when the refund completed - null for a failed refundExample: null

string

Unique reference ID for this refund transactionExample: "e6b2a9c4d1f847b3a8e2c5d9f0a7b1c6"

Order

Payment

Card Tokens

Merchant

Settlement

Refund

Subscriptions

Payment Links

Virtual Bank Accounts

Utilities

Webhooks

Event Overview

Delivery Details

Headers

Payload Schema

Field Specifications

​Event Overview

​Delivery Details

​Headers

​Payload Schema

​Field Specifications

Event Overview

Delivery Details

Headers

Payload Schema

Field Specifications