# B2B Customer Care - Communication Status Codes (/limited-release/wlw/b2bcc/status-codes/communication) WLW's Communication Status Codes provide information about the interaction between the different systems through which data passes to complete a transaction. These code are divided into the following groups: * [Success Messages](#success-messages) * [Failure Messages](#failure-messages) See also the list of [Payment Status Codes](/limited-release/wlw/b2bcc/status-codes/payment/) which provide information about a payment's life-cycle and the current state of a payment transaction. ## Success Messages [#success-messages] | Code | Status Message | Description | | ----- | -------------- | --------------------------------------------- | | `100` | `Success` | The information was successfully transmitted. | ## Failure Messages [#failure-messages] | Code | Status Message | Description | | ----- | ------------------------------------------- | ----------------------------------------------------------------------------------------------- | | `400` | `General Failure` | An error of unknown cause has occurred. | | `401` | `Invalid Merchant URI` | The value submitted for the Merchant URI attribute is not valid. | | `402` | `Empty Merchant URI` | A Merchant URI value is required, but the attribute is empty. | | `403` | `Invalid Arguments` | One or more of the parameter values for the method is not valid. | | `404` | `Empty Store Location URI` | A Store Location URI value is required, but the attribute is empty. | | `405` | `Empty Terminal ID List` | The list of terminal IDs does not contain any values. | | `406` | `Invalid Store Location ID` | The value passed for the Store Location ID is not valid. | | `407` | `Merchant Not Present` | The merchant provides is not a registered acceptance location. | | `408` | `Invalid Checkout Token` | The token captured does not resolve to a valid QR Code. | | `409` | `Merchant Already Exists` | The merchant registration failed because a merchant with that name or ID is already registered. | | `410` | `Empty Terminal ID` | A Terminal ID value is required, but the attribute is empty. | | 411 | `Store Location Not Present` | The Store Location provided does not exist as a valid acceptance location. | | `412` | `Merchant Authentication Failed` | The merchant credentials could not be authenticated. | | `413` | `Merchant Transaction Confirmation Timeout` | The amount of time permitted for the merchant to confirm the transaction has expired. | | `414` | `Merchant Transaction Void Failed` | The transaction Void initiated by the merchant failed. | | `415` | `Invalid Customer URI` | The value supplied for the Customer URI attribute is not a valid value for that field. | | `416` | `Invalid Device URI` | The value supplied for the Device URI attribute is not a valid value for that field. | | `417` | `Device Type Not Found` | The value supplied for the Device URI does not match that of any registered devices. | | `418` | `Device Already Registered` | The device registration failed because a device with that identification is already registered. | | `419` | `Device Authentication Failed` | The device could not be authenticated. | | `420` | `Invalid Partner URI` | The value supplied for the Partner URI attribute is not a valid value for that field. | | `421` | `Invalid Tenant URI` | The value supplied for the Tenant URI attribute is not a valid value for that field. | | `422` | `Invalid Issuer URI` | The value supplied for the Issuer URI attribute is not a valid value for that field. | | `423` | `Customer Already Exists` | The customer registration failed because a customer with that name or ID is already registered. | | `424` | `Invalid Terminal ID` | The value supplied for the Terminal ID attribute is not a valid value for that field. | | `444` | `Request Object Null` | The request object must contain a value. | | `445` | `Device Already Exists` | The device registration failed because a device with that identification is already registered. | | `446` | `No Transaction Details Found` | The system cannot locate any details for the specified transaction ID. | | `447` | `No Transaction Amount Found` | The system cannot locate an amount for the specified transaction ID. | | `448` | `Invalid Old Password` | The password cannot be reset because the current password provided is not correct. | | `449` | `Invalid Old PIN` | The PIN cannot be reset because the current PIN provided is not correct. | | `450` | `Transaction Cancelled` | The transaction has been successfully cancelled and no charge or refund has occurred. | | `451` | `Invalid Password and Device PIN` | The password and device PIN provided are not valid values. | | `468` | `Request Still Processing` | The transaction has not yet completed and the status is pending. | | `485` | `Refund Amount Exceeded` | The amount of the refund exceeds the amount of the original purchase. | | `500` | `Error` | An unspecified, unrecoverable error has occurred. | | `501` | `Error in Checkout Token Generation` | The checkout token could not be generated due to an unspecified error. | | `543` | `Customer Not Found` | The system could not locate a record for the specified customer ID. | | `555` | `Data Access Error` | The database is currently unavailable due to an access error. |