Analyzing the nature of the notification
In a notification, field vads_url_check_src allows to differentiate the notifications based on their triggering event:
- creation of a transaction
- new notification sent by the merchant via the Merchant Back Office.
It specifies the applied notification rule.
Values associated with the vads_url_check_src field:
| Value | Description |
|---|---|
| PAY | Payment creation by form. Value is sent in the following cases:
|
| BO | Execution of the notification URL from the Merchant Back Office. (Right-click a transaction > Send the Instant Payment Notification). |
| BATCH_AUTO | Value sent as part of an authorization request for a payment that was awaiting authorization. Not applicable for one-off direct debit on SEPA. |
| BATCH | Value sent in case of an update of a transaction status after its synchronization on the acquirer side. Only if the merchant has configured the “Instant Payment Notification URL on batch change” rule. |
| DCF | Value sent following a transaction originating from the data collection form. |
| MERCH_BO | Value sent following an operation made via the Merchant Back Office if the merchant has configured the following notification rule: “Instant Payment Notification URL on an operation coming from the Back Office”. |
| PAYMENT_ORDER | Value sent following a transaction originating from a payment order (e-mail, payment URL or SMS). |
| REC | Value is sent only for recurring payments if the merchant has configured the Instant Payment Notification “URL when creating recurring payments rule”. Not applicable for SEPA one-off direct debit. |
| RETRY | Automatic retry of the IPN. |
After checking its value, the script can process differently depending on the nature of the notification.
For example:
If vads_url_check_src is set to PAY or BATCH_AUTO the script updates the order status, ...
If vads_url_check_src is valued at REC the script will retrieve the recurring payment reference and will increment the number of the expired installment payments in case the payment has been accepted, etc.