Decline Reasons
When a payment fails, the Volume system provides a description explaining the reason for the failure.
Decline reasons can be viewed in the Merchant Portal under: Pay-ins → Detailed Payment View

Downloading Decline Reasons repositories
To efficiently investigate payment decline reasons, it is recommended to download a detailed report from the Merchant Portal.
You can access this report by navigating to: Merchant Portal → Reporting
Available Decline Reasons
| Description | Category |
|---|---|
| Merchant payment id must be unique | Error in integration |
| Insufficient funds in payer account | User/Account issue |
| Open banking provider error | Bank / provider |
| Bank maintenance | Bank / provider |
| Bank error | Bank / provider |
| Payment authorisation rejected by payer | Payer action |
| Payment authorisation rejected by initiating institution | Bank / provider |
| Payment expired | Payment lifecycle |
| Payment exceeds the daily limit | User/Account issue |
| Consent already approved | Payer action |
| Internal server error | System |
| Unknown error | System |
| Updated by admin | System |