| - | "if it is invalid, an HTML page is shown with a message : 'Sorry, Some Problem Occurred" | - | Command name is empty |
| - | "if it is invalid, an HTML page is shown with a message : 'Sorry, Some Problem Occurred" | - | Merchant key is empty |
| - | "if it is invalid, an HTML page is shown with a message : 'Sorry, Some Problem Occurred" | - | Hash is empty |
| failed | transactionId is | E2003 | - |
| failed | transactionId is longer than 40 | E2017 | - |
| failed | transactionId is not alphanumeric | E2018 | - |
| failed | Amount is empty or less than 1 | E2004 | - |
| failed | Amount is less than 1 | E2006 | - |
| failed | No vpa exists against given merchant. Please contact sales support | E2007 | - |
| failed | Incoming VPA Does Not Match with registered vpa. Please provide a valid vpa | E2008 | - |
| failed | Expiry Time cannot be less than 1 | E2009 | - |
| failed | PG Params are missing. Please contact sales support | E2015 | Mastercard, Rupay & Visa IDs are missing for the merchant |
| failed | QR Generation Failed | E2013 | Couldn't generate QR due to internal issues |
| failed | qr already exists but amount does not match with existing qr amount | E2010 | Couldn't match the incoming amount with existing QR's amount |
| failed | qr already exists but vpa does not match with existing qr vpa | E2011 | |
| failed | QR with the given transactionId has been already used. Please provide a new TransactionId | E2012 | when status of transaction with the sent transactionId is success |
| failed | Duplicate Request | E2025 | when multiple qr generation requests are sent with same txnid at the same time |
