> ## Documentation Index > Fetch the complete documentation index at: https://docs.enfuce.com/llms.txt > Use this file to discover all available pages before exploring further. # Request which is being send to customers decision making systems > This is not an endpoint. This is the description of request the which is being sent to customers decision making system if provided ## OpenAPI ````yaml authorisation-forwarding post /auth openapi: 3.0.3 info: title: Enfuce Authorisation Forwarding Schema description: '' version: 1.0.0 servers: - url: http://localhost security: [] tags: - name: Forward authorisation webhook paths: /auth: post: tags: - Forward authorisation webhook summary: Request which is being send to customers decision making systems description: >- This is not an endpoint. This is the description of request the which is being sent to customers decision making system if provided operationId: authPost requestBody: $ref: '#/components/requestBodies/authorisationRequestBodyV1' responses: '200': description: '' content: application/json: schema: $ref: '#/components/schemas/authorisationResponseV1' components: requestBodies: authorisationRequestBodyV1: required: true content: application/json: schema: $ref: '#/components/schemas/authorisationRequestV1' schemas: authorisationResponseV1: description: '' type: object required: - authorisationResponse properties: authorisationResponse: description: ISO8583 authorisation message type: object required: - DE39 properties: DE39: description: Response Code type: string DE05: description: >- Amount in settlement currency. Should be present for partial approval debit case type: string DE04: description: >- Deprecated. Amount, Transaction. Should be present for partial approval debit case type: string deprecated: true DE06: description: >- Deprecated. Amount, Cardholder Billing. Should be present for partial approval debit case for multicurrency transaction type: string deprecated: true DE54: description: >- Deprecated. Additional Amounts. Should be present for partial approval debit case type: string deprecated: true authorisationRequestV1: type: object required: - metadata - authorisation properties: metadata: description: Additional metadata type: object required: - systemTimeStamp properties: systemTimeStamp: description: >- UTC Enfuce authorisation forwarding system time stamp in format YYYY-MM-DDThh:mm:ss.SZ, where capital S represents a fraction оf second that can be from 0 to 9 digits long type: string format: date-time example: '2021-10-14T09:23:54.611951Z' traceId: description: Unique random-generated id per message type: string transactionId: description: Transaction identifier generated by Enfuce type: string linkId: description: >- A link ID number linking all messages connected to the same purchase type: string cardId: description: Enfuce Card ID type: string customerId: description: Enfuce Customer Identifier type: string institutionId: description: Institution Identifier type: string fees: description: >- Transaction based fees that are charged based on the transaction. Example: Mark-up fees for transactions done in non-domestic currency or ATM fees charged for ATM withdrawals. Fees are available in both request and advice messages type: array items: $ref: '#/components/schemas/fee' available: $ref: '#/components/schemas/money' description: > Available amount of the account that is linked to the card that is used. This amount does not consider possible spend controls. Note that this amount is only valid for setups where ledger is managed by Enfuce. If ledger is held by issuer, the amount in this field will be zero (0). The available amount is fetched mid-authorisation process. As the end to end authorisation process takes 0,5-3 sec, there can occur situations where another authorisation, API transaction or financial transaction is processed in parallel which is not reflected in the available. This is however extremely rare. The amount provided in this field can have a minus sign if the account is overlimit. authLengthInMinutes: description: >- Authorisation life cycle length in minutes. Only available if merchant has requested a prolonged authorisation expiry time. If empty, Enfuce standard authorisation expiration time applies type: string retry: description: If set to true, indicates that message is redelivered type: boolean partialApprovalCapableMerchant: description: > Indicates if merchant will accept partial approval of amount. E.g. at a fuel pump the initial authorisation might be a predefined flat amount to which the issuer can respond an available amount smaller than the actual authorisation request. Note that this functionality is only available when card account balance resides at issuer. type: boolean incremental: description: If set to true, this is an incremental transaction type: boolean authorisation: description: ISO8583 authorisation message type: object required: - MTI - DE03 - DE04 - DE07 - DE11 - DE12 - DE13 - DE18 - DE22 - DE32 - DE37 - DE49 properties: MTI: description: Message Type Identifier type: string DE03: description: Processing code type: string DE04: description: Amount, Transaction type: string DE05: description: Amount, Settlement type: string DE06: description: Amount, Cardholder Billing type: string DE07: description: Transmission Date and Time type: string DE10: description: Conversion Rate, Cardholder Billing type: string DE11: description: System Trace Audit Number type: string DE12: description: Time, Local Transaction type: string DE13: description: Date, Local Transaction type: string DE14: description: Date, Expiration type: string DE15: description: Date, Settlement type: string DE18: description: Merchant Type type: string DE19: description: Acquiring Institution Country Code type: string DE20: description: PAN Country Code type: string DE22: description: Point of Service Entry Mode type: string DE23: description: Card Sequence Number type: string DE25: description: Point of Service Condition Code type: string DE26: description: Point of Service PIN capture Code type: string DE28: description: Amount, Transaction Fee type: string DE32: description: Acquiring institution Identification Code type: string DE33: description: Forwarding institution Identification Code type: string DE37: description: Retrieval Referenece Number type: string DE38: description: Authorisation Identification Response type: string DE39: description: Response Code type: string DE41: description: Card Acceptor Terminal Identification type: string DE42: description: Card Acceptor Identification Code type: string DE43: description: Card Acceptor Name/Location type: string DE46: description: Proprietary field 46 type: string DE47: description: Proprietary field 47 type: string DE48: description: Proprietary field 48 type: string DE49: description: Currency Code, transaction type: string DE50: description: Currency Code, settlement type: string DE51: description: Currency Code , Cardholder Billing type: string DE90: description: Original Data Elements type: string DE95: description: Replacement amounts type: string fee: description: Fee information type: object required: - type - settlementAmount - settlementCurrency properties: type: $ref: '#/components/schemas/feeType' description: Fee Type settlementAmount: description: Fee Settlement Amount type: string settlementCurrency: description: Fee Settlement Currency type: string money: description: Amount including currency type: object required: - amount - currency properties: amount: type: number example: 3.14 currency: $ref: '#/components/schemas/currency' feeType: description: > * `MARKUP_FEE` - fee for transactions done in non-domestic currency. * `ATM_FEE` - fee for ATM withdrawals. * `CASH_FEE` - fee for cash transactions. * `UNKNOWN` - is a fallback value that is not expected but in case present represents another transaction based fee not covered by the above options. type: string enum: - MARKUP_FEE - ATM_FEE - CASH_FEE - UNKNOWN currency: type: string description: A valid ISO 4217 currency code pattern: '[A-Z]{3}' example: EUR ````