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
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.
Checkout 20104 recovery
Recover more payments like Checkout 20104
Slicker handles codes like 20104 by combining decline reason, issuer behavior, BIN data, and timing signals to choose the next best recovery action.
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