C
Checkout.comCheckout 20104
Gateway Reject - Invalid Transaction
Technical
System or connectivity issues
Do Not Retry
Retry will not succeed
Description
The payment gateway rejected the transaction due to invalid transaction data.
Recommended Action
Review the transaction parameters and correct any issues before resubmitting.
Common Causes
- Invalid or conflicting transaction parameters
- Unsupported transaction type for this gateway configuration
Recovery Tips
- Verify all transaction fields match the API specification
- Contact Checkout.com support if the issue persists
Quick Reference
Code
20104
Category
Technical
Retryable
No
Source
Checkout
Recoverability verdict
Retrying 20104 will not work
This is a hard decline. Retrying code 20104 will not recover the payment. But most merchants seeing this code also have soft declines they are not recovering. Check what your retry strategy is leaving behind.
Related Decline Codes
20003Non-Retryable
Invalid Merchant
The merchant ID or service provider configuration is invalid. This is typically a technical setup issue.
20006Non-Retryable
Error
The request contained invalid parameters. The issuer or gateway could not process the transaction as submitted.
20009Retryable
Request in Progress
The transaction is currently being processed. A duplicate request may have been submitted.
20012Non-Retryable
Invalid Transaction
The issuer has rejected the transaction as invalid. The transaction type or parameters are not accepted.