Error Message | System Logic | What It Means | What To Do |
Please indicate customer to call their bank to authorize transaction | The backend received a response code from the card issuer indicating that manual authorization is required. The transaction is flagged for issuer intervention. | Your bank needs to approve this transaction. | Call your bank to authorize the payment, then retry. |
Insufficient Founds. Please use a different card. | The card issuer’s response code indicates insufficient funds in the account. The backend rejected the transaction at the pre-authorization stage. | There isn’t enough money on your card. | Use a different card or add funds to your account. |
Account closed. Please use a different card | The backend received a response from the issuer that the account status is “closed.” The transaction is blocked by the card network. | The card account is closed. | Use another card or contact your bank. |
Declined | The card issuer or processor returned a generic “declined” code. No further details are provided in the backend logs. | The payment was declined. | Try again, check your card details, or contact your bank. |
Invalid transaction. Please contact X-1 Support | The backend validation failed due to an unsupported transaction type or malformed request payload. The transaction does not meet Avfuel’s business rules. | The transaction isn’t allowed. | Review the transaction details or contact X-1 Support. |
DECLINED BY AVFUEL CONTRACT. Please contact Avfuel Support | The backend contract validation failed. The transaction does not meet Avfuel contract requirements or is outside contract limits. | The payment was declined due to contract issues. | Contact Avfuel Support for help. |
This card cannot be used for Priced Fuel. Please contact X-1 Support | The backend business rule check flagged the card as ineligible for priced fuel transactions. The card’s profile or contract does not allow this type of purchase. | This card can’t be used for priced fuel. | Use a different card or contact X-1 Support. |
Please indicate customer to call their bank to authorize transaction | The backend received a “hold card” response from the issuer, indicating the card is flagged for manual review or security hold. | Your card is on hold. | Contact your bank to resolve the hold, then retry. |
Invalid Avfuel Contract Fuel Number. Please try again or contact Avfuel Support | The contract fuel number provided does not match any valid records in the backend contract table. | The contract fuel number is invalid. | Double-check the number or contact Avfuel Support. |
Invalid AvCard Number. Please try again | The AvCard number failed backend validation (e.g., failed Mod10 checksum or not found in the card table). | The AvCard number is invalid. | Double-check and re-enter the card number. |
Processor Outage, Please try again shortly or call Avfuel Support | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
DECLINED-REPORTED CANCELLED CALL 1-800-282-2731 CODE-106 | The issuer flagged the card as cancelled and returned a specific decline code. | The card has been cancelled. | Call the number provided for assistance. |
Processor Requires Line Items. Please contact X-1 Support | The backend validation requires at least one line item in the transaction payload. The request was missing required details. | You need to add line items to your transaction. | Add the required details or contact X-1 Support. |
DETAIL ITEM CONTRACT MISMATCH. Please contact X-1 Support | The backend detected a mismatch between contract details and transaction line items. | There’s a contract mismatch in your transaction. | Contact X-1 Support for help. |
Invalid Customer Zip Code | The zip code provided failed backend validation (e.g., not matching expected format or not found in customer profile). | The zip code entered is invalid. | Double-check and correct the zip code. |
Future Fuel Ticket Date is not allowed | The backend compared the fuel ticket date to the current system date and rejected the transaction because the date was in the future. | You can’t use a future date for fuel tickets. | Use today’s date or an earlier date. |
DECLINED BY COLT-515 | The backend received a decline code from the COLT processor, indicating the transaction was rejected by COLT’s business rules. | The payment was declined by COLT. | Contact support for more information. |
Invalid Air Card Number. Please try again | The Air Card number failed backend validation (e.g., failed Mod10 checksum or not found in the card table). | The Air Card number is invalid. | Double-check and re-enter the card number. |
Invalid Avfuel CF Number. Please try again | The Avfuel CF number failed backend validation or was not found in the contract table. | The Avfuel CF number is invalid. | Double-check and re-enter the number. |
Error sending transaction authorization. Please try again | The backend encountered a server error or timeout when sending the authorization request to the issuer. | There was a technical issue sending the payment. | Wait and retry, or contact support. |
Invalid Card. Please try again | The card failed backend validation (e.g., not found, expired, or blocked). | The card is invalid. | Double-check and re-enter the card details. |
Invalid detail string. Please contact X-1 Support | The backend parser failed to process the detail string due to formatting or data errors. | There’s an error in the transaction details. | Review and correct the details or contact X-1 Support. |
DECLINED-ISSUE WITH CARD CALL 1-800-282-2731 CODE-109 | The issuer returned a specific decline code indicating an issue with the card. | There’s an issue with your card. | Call the number provided for assistance. |
Invalid MasterCard Card Number. Please try again | The MasterCard number failed backend validation (e.g., failed Mod10 checksum or not found in the card table). | The MasterCard number is invalid. | Double-check and re-enter the card number. |
Invalid Visa Number. Please try again | The Visa card number failed backend validation (e.g., failed Mod10 checksum or not found in the card table). | The Visa card number is invalid. | Double-check and re-enter the card number. |
DO NOT RETRY. Please contact Avfuel Support | The backend flagged the transaction as non-retriable due to repeated errors or risk triggers. | Do not retry this transaction. | Contact Avfuel Support for help. |
Invalid account. Please try again | The account number failed backend validation or was not found in the account table. | The account is invalid. | Double-check and re-enter the account number. |
Card Expired. | The backend compared the card’s expiration date to the current system date and found it to be in the past. | The card is expired. | Use a valid, non-expired card. |
Card on file not recognized. Please contact X-1 Support . | The card on file was not found in the backend card table or failed validation. | The card on file isn’t recognized. | Contact X-1 Support for help. |
INVALID UNIT NUMBER-010 | The unit number provided failed backend validation (e.g., not matching expected format or not found in the unit table). | The unit number is invalid. | Double-check and correct the unit number. |
Processor outage. Please try again shortly or call Avfuel Support. | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
NEW ACCT INFO | The backend requires new account information for the transaction. | New account information is needed. | Update your account details or contact support. |
Invalid Authorization Code | The authorization code provided failed backend validation or was not found in the authorization table. | The authorization code is invalid. | Double-check and correct the code. |
Processor outage, Please try again shortly or call Avfuel Support. | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
Invalid Air Card Number | The Air Card number failed backend validation or was not found in the card table. | The Air Card number is invalid. | Double-check and re-enter the card number. |
Air Card transactions only allow one fuel line. | The backend enforces a constraint that only one fuel line item is allowed per Air Card transaction. | Only one fuel line allowed per Air Card transaction. | Submit each fuel line as a separate transaction. |
Invalid American Express Card Number | The Amex card number failed backend validation or was not found in the card table. | The Amex card number is invalid. | Double-check and re-enter the card number. |
Invalid Multi Service Card Number | The Multi Service card number failed backend validation or was not found in the card table. | The Multi Service card number is invalid. | Double-check and re-enter the card number. |
Transaction requires at least one line item with value. | The backend validation requires at least one line item with a non-zero value in the transaction payload. | You need to add line items with values to your transaction. | Add the required details or contact support. |
Inactive Card. | The card record in the backend card table has a status of “inactive.” | The card is inactive. | Use a different card or contact support. |
Air Card contract transactions only allow one fuel line per purchase. | The backend enforces a constraint that only one fuel line item is allowed per Air Card contract transaction. | Only one fuel line allowed per Air Card contract transaction. | Submit each fuel line as a separate transaction. |
Processor outage, Please try again shortly or call Avfuel Support. | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
Uknown number. Please try again shortly or call Avfuel Support. | The backend received an unknown or unrecognized response code from the issuer. | The card number is unknown. | Double-check and re-enter the card number, or contact Avfuel Support. |
Error submitting request to Avcard gateway. Try again shortly. | The backend encountered a gateway error or timeout when submitting the request to the Avcard gateway. | There was a technical issue submitting the payment. | Wait and retry, or contact support. |
Inactive Merchant Account. Please contact Avfuel. | The merchant account record in the backend merchant table has a status of “inactive.” | The merchant account is inactive. | Contact Avfuel to reactivate or resolve the issue. |
Colt card is NOT supported | The backend business rule check flagged the Colt card as unsupported for this transaction type. | Colt card is not supported. | Use a different card or contact support. |
Invalid Invoice Amount. | The invoice amount provided failed backend validation (e.g., out-of-range value or not matching expected format). | The invoice amount is invalid. | Double-check and correct the invoice amount. |
DECLINED-INVALID CARD CALL 1-800-282-2731 | The issuer returned a specific decline code indicating an invalid card. | The card is invalid. | Call the number provided for assistance. |
Processor outage, Please try again shortly or call Avfuel Support. | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
Invalid Merchant Account | The merchant account number failed backend validation or was not found in the merchant table. | The merchant account is invalid. | Double-check and correct the merchant account number. |
Invalid Avfuel Number | The Avfuel number failed backend validation or was not found in the Avfuel table. | The Avfuel number is invalid. | Double-check and correct the Avfuel number. |
Invalid item for AirCard | The item provided is not supported for Air Card transactions according to backend business rules. | The item is not valid for Air Card transactions. | Use a valid item or contact support. |
Transaction amount is exceeds account limit. | The transaction amount exceeds the account’s allowed limit as defined in backend account settings. | The transaction amount is too high. | Reduce the amount or contact your bank to increase the limit. |
Terminal ID is not active. Please contact Avfuel. | The terminal ID provided is marked as inactive in the backend terminal table. | The terminal ID is inactive. | Contact Avfuel to activate the terminal. |
DECLINED-ISSUE WITH CARD CALL 1-800-282-2731 | The issuer returned a specific decline code indicating an issue with the card. | There’s an issue with your card. | Call the number provided for assistance. |
Avfuel CF Card Card is NOT supported | The backend business rule check flagged the Avfuel CF Card as unsupported for this transaction type. | Avfuel CF Card is not supported. | Use a different card or contact support. |
Invalid post auth code | The post-authorization code provided failed backend validation or was not found in the authorization table. | The post auth code is invalid. | Double-check and correct the code. |
Expired Card | The backend compared the card’s expiration date to the current system date and found it to be in the past. | The card is expired. | Use a valid, non-expired card. |
Received Line Items Calculation Error | The backend detected a calculation error in the line items (e.g., totals do not match expected values). | There’s a calculation error in your line items. | Review and correct the line items or contact support. |
Error submitting request. Try again shortly. | The backend encountered a server error or timeout when submitting the request. | There was a technical issue submitting the payment. | Wait and retry, or contact support. |
Invalid product: ParkingFee | The product “ParkingFee” is not mapped or supported in the backend product table. | The product “ParkingFee” is not valid. | Use a valid product or contact support. |
Invalid Multi Service Card Number | The Multi Service card number failed backend validation or was not found in the card table. | The Multi Service card number is invalid. | Double-check and re-enter the card number. |
Invalid Expiration month. | The expiration month provided failed backend validation (e.g., not matching expected format or out-of-range value). | The expiration month is invalid. | Double-check and correct the expiration month. |
Invalid product: JetAFuelwithAdditive | The product “JetAFuelwithAdditive” is not mapped or supported in the backend product table. | The product “JetAFuelwithAdditive” is not valid. | Use a valid product or contact support. |
Invalid Document Received. Please contact X-1 Support. | The document received failed backend validation or was not recognized by the document parser. | The document is invalid. | Contact X-1 Support for help. |
Uknown card. Card does not exist. | The card number provided does not exist in the backend card table. | The card number is unknown. | Double-check and re-enter the card number. |
Invalid Discover Card Number | The Discover card number failed backend validation or was not found in the card table. | The Discover card number is invalid. | Double-check and re-enter the card number. |
Maximum of one Fuel Product Allowed | The backend enforces a constraint that only one fuel product is allowed per transaction. | Only one fuel product allowed per transaction. | Submit each fuel product as a separate transaction. |
PostAuth Transactions not valid for this card type. | The backend business rule check flagged the card type as unsupported for post-authorization transactions. | PostAuth transactions are not valid for this card type. | Use a valid card type or contact support. |
Invalid product: AfterHoursFee | The product “AfterHoursFee” is not mapped or supported in the backend product table. | The product “AfterHoursFee” is not valid. | Use a valid product or contact support. |
Invalid product: JetAFuel | The product “JetAFuel” is not mapped or supported in the backend product table. | The product “JetAFuel” is not valid. | Use a valid product or contact support. |
Please call card provider. | The backend received a generic response code indicating the card provider must be contacted for further details. | Contact your card provider for help. | Call your card provider for assistance. |
Invalid Card Number | The card number failed backend validation or was not found in the card table. | The card number is invalid. | Double-check and re-enter the card number. |
Invalid Expiration | The expiration date provided failed backend validation (e.g., not matching expected format or out-of-range value). | The expiration date is invalid. | Double-check and correct the expiration date. |
Fuel Price too High | The fuel price entered exceeds the maximum allowed value in backend business rules. | The fuel price is too high. | Enter a lower fuel price or contact support. |
Amount Exceeds Limit | The transaction amount exceeds the account’s allowed limit as defined in backend account settings. | The transaction amount is too high. | Reduce the amount or contact your bank to increase the limit. |
Batch in Process. Please wait until processing is complete. | The backend detected that a batch process is currently running for the account or transaction. | A batch process is in progress. | Wait until the batch process completes, then retry. |
Invalid Zip Code | The zip code provided failed backend validation (e.g., not matching expected format or not found in customer profile). | The zip code entered is invalid. | Double-check and correct the zip code. |
Processor outage, Please try again shortly or call Avfuel Support. | The backend service endpoint is unavailable, or a network error occurred during transaction processing. | The payment system is temporarily down. | Wait and retry, or contact Avfuel Support. |
Tips for Successful Transactions
Double-check all card and billing details before submitting.
Use active cards with sufficient funds.
If you see a processor outage, wait and retry.
For product/service errors, verify selections with support.
Keep support contact information handy for persistent issues.