These messages are not meant to be displayed to the end user, as most of them are of very technical nature.

Instead, the Merchant’s system or shop should decide what to do in each of these cases (for instance, suggesting a new payment method when the risk check fails). We suggest to show the user the generic error message, and use these codes in your logs for further analysis.

Error codes not displayed here are either deprecated or not relevant. In case of any doubts, contact us.

Code	Message	Meaning	Action
101	Merchant not found.	The Merchant does not exist or was not recognized.	Check the API key.
102	Transaction not found.	Transaction does not exist. Rare; may occur when redirecting back from the acquirer.	Try again later or contact us.
104	Unsupported payment type.	Payment method does not exist or merchant does not have this payment method configured.	Find your payment method from list in Appendix or contact us for setting up required payment method.
106	The payment processor is not responding.	Acquirer is not responding.	Try again later.
107	There has been an error with the payment processor.	Acquirer service is not responding or returning errors.	Try again later or contact us.
108	Payment error	Acquirer returned a payment-related error.Includes more information in the message if available.	Look into error message and contact us if required.
109	Merchant does not have payment processor for this payment type.	No acquirer has been defined for the merchant.	Contact us.
110	Customer did not agree to the risk check process required by this payment method.	Customer must explicitly agree to the risk check process.	Check risk_check_approval. Remind the customer that risk check must be approved.
111	Risk check processor not found.	System error	We probably already noticed this error and working on it. Contact us if necessary.
112	Customer did not pass the risk check.	Customer had insufficient risk check score, wasn’t identified by the risk check service or the address does not exist.	Inform the customer and suggest alternative payment methods.
113	There has been an error with the risk check.	Error in the risk check processor’s service.	Try again later.
114	Too many risk check attempts from this address.	Customer from the same IP has attempted to submit an order (and failed the risk check) multiple times, possibly with different personal/address data.	.Suggest an alternative payment method.
115	Payment provider not found.	System error.	We probably already noticed this error and working on it. Contact us if necessary.
116	Risk check adapter not found.	System error.	We probably already noticed this error and working on it. Contact us if necessary.
117	Payment adapter not found.	System error.	We probably already noticed this error and working on it. Contact us if necessary.
118	Recurring payment could not find the original transaction.	You are trying to run a recurring transaction, but the original transaction was not found.	Provide or check original_transaction_id's validity.
119	This payment processor does not support recurring payments.	You are trying to make a recurring payment with an acquirer that doesn’t support recurring payments.	Make a new non-recurring payment.
120	Recurring payment could not find the original payment token.	The tokens needed to make a repeat transaction with the acquirer could not be found. Most likely the acquirer did not support recurring payments at the time of the original transaction.	Make a new non-recurring transaction.
121	This payment processor does not support refunds.	Refunds cannot be made for this acquirer.	Contact us if the transaction MUST be refunded.
122	The refunded amount cannot exceed the original amount.	Combined amount of past refunds for this transaction is larger than the original amount.	Check the amount to be refunded.
123	This currency is not supported.	The selected currency is not supported by this acquirer.	Make sure provided currency code is valid and try another currency otherwise.
124	Invalid country code.	The country has not been specified in the correct format.	Make sure the country code is in the ISO 3166-1 format.
125	Invalid or missing return URLs.	No valid return URLs have been specified in the payment request.	Check the parameters success_url, error_url and postback_url.
126	Invalid bank account information.	The bank data of a direct debit transaction does not pass the validation.	Check IBAN and BIC
127	This payment processor does not support authorization.	The payment processor does not support authorize/capture/reverse operations.	Do not use Authorization API or contact us.
128	Transaction has not been authorized for capture or reverse operation.	The status of transaction is other than “authorized”, that is, it has already been captured or reversed or was not authorized to begin with.	Create a new payment.
134	Amount cannot be zero or negative.	Payments with zero or negative amounts are rejected by all acquirers.	Only send payments with an amount greater than zero.
135	Payouts not supported.	Payment processor does not support payouts.	Make sure the payment processor you are using supports payouts.
136	Transaction status change not possible.	The status change is not permitted or logical, for example trying to change a cancelled transaction to completed.	Try another status or contact us.
144	Unauthorized.	The passed credentials are invalid.	Check your api_key and outgoing_key
145	Channel cannot be found.	Provided url_name does not match to any active channels. Relevant to C-Pay now product only(a.k.a Jetztzahlen).	Check url_name of the channel you would like to manage.
146	Import error: related error message.	Import error will describe any validations that the request could not pass. Relevant to C-Pay now product only(a.k.a Jetztzahlen).	Check the imports page of the C-Pay now channel.