Barclays Rewards Loyalty Sync API

openapi: 3.1.0
info:
  title: Rewards Loyalty Sync
  description: Enables a secure way to sync a customers loyalty status information with Barclays
  termsOfService: www.barclaycardus.com
  contact:
    name: Barclays Rewards Support Team
    url: https://developer.barclays.com/support/PLACEHOLDER
    email: RTBDIGITAL@barclaycardus.com
  version: '1.0'
x-method: searched
x-source: https://developer.barclays.com/api/apis/versions/52e2b51b-9937-4f12-901b-3275b0aeb2a8.bdn/design?specification=oas31
x-harvested: '2026-09-04'
x-harvested-note: Verbatim OpenAPI 3.1 design export from the Barclays API Exchange registry (developer.barclays.com), fetched
  anonymously. The untouched export is in openapi/_original/barclays-rewards-loyalty-sync-openapi.json. The UK Open Banking
  documents carry OBIE (openbanking.org.uk) in info.contact/termsOfService because they are the OBIE standard contract as
  Barclays implements and publishes it — the API, the registry record and the host are Barclays'.
paths:
  /cards/accounts/rewards/loyaltyTier/update:
    post:
      tags:
      - tier-update-xapi
      summary: Perform tier update
      operationId: updateTierUsingPOST
      parameters:
      - name: Correlation-ID
        in: header
        description: Correlation-ID
        required: true
        schema:
          type: string
          description: Correlation-ID
      - name: Authorization
        in: header
        description: Authorization
        required: true
        schema:
          type: string
          description: Authorization
      requestBody:
        description: loyaltyTierRequestData
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LoyaltyTierRequestData'
            example: null
        required: true
      responses:
        '200':
          description: Fully Accepted
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LoyaltyTierResponseData'
              example: null
        '400':
          description: The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat
            the request without modifications.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
        '401':
          description: The user could not be authenticated for this request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
        '403':
          description: The user is not permitted to access the requested operation and it cannot be completed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
        '404':
          description: Server has not found a resource with that URI. This may be temporary and permanent condition. This
            status code is commonly used when the server does not wish to reveal exactly why the request has been refused,
            or when no other response is applicable.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
        '503':
          description: 'Temporary maintenance of service, try again later. The implication is that this is a temporary condition
            which will be alleviated after some delay. Note: The existence of the 503 status code does not imply that a server
            will use it when becoming overloaded. Servers may simply refuse the connection.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseType'
              example: null
      deprecated: false
components:
  schemas:
    TierUpdateStatus:
      type: object
      description: Contains tier code update success/failure status for each account.
      properties:
        externalAccountId:
          type: string
          description: Common card account identifier agreed between GAP and Barclays, unique per card. Generated at Barclays
            during card apply/conversion process and provided to GAP to be stored for further communication with Barclays.
          example: 2286f91c-f7a8-3771-8e62-cb4833aeb740
        status:
          type: string
          description: Indicates whether tier update request specific to EAID has been processed successfully or declined
            due to any of the multiple errors mentioned in Error Codes sheet.
          example: Accepted
        errors:
          $ref: '#/components/schemas/ErrorDetails'
      required:
      - externalAccountId
      - status
    ErrorType:
      type: object
      description: Message details - additional operation execution information.
      properties:
        code:
          type: string
          description: Machine readable, unique code of the message related to particular case within operation execution.
          example: ACCOUNT_NUMBER_NOT_FOUND
        detail:
          type: string
          description: Provides additional low-level details about the error to assist with troubleshooting. Not for displaying
            purposes.
        id:
          type: string
          description: Generated message identifier for particular request, helping to locate server logs.
          example: 1c4717c4-d4a5-e3f3-4a71-b868908763ff
        title:
          type: string
          description: Short description of the error. Not for displaying purposes.
          example: The authorization credentials required for this request are invalid.
      required:
      - code
      - id
      - title
      title: ErrorType
    LoyaltyTierResponse:
      type: object
      description: Loyalty Tier Response Data
      properties:
        tierUpdateStatusList:
          type: array
          description: List of tierUpdateStatus objects per unique EAID under one loyalty program, which contains information
            about the status of tier update request processed at Barclays.
          items:
            $ref: '#/components/schemas/TierUpdateStatus'
      required:
      - tierUpdateStatusList
    ErrorResponseType:
      type: object
      description: 'An API error response. '
      properties:
        errors:
          type: array
          description: Contains one or more error messages and is mutually exclusive with the data item. This will not be
            returned in success scenarios.
          items:
            $ref: '#/components/schemas/ErrorType'
        meta:
          type: object
          description: Contains Non-standard meta information
          properties: {}
      title: ErrorResponseType
    LoyaltyTierResponseData:
      type: object
      description: Loyalty Tier Update Response Data
      properties:
        data:
          $ref: '#/components/schemas/LoyaltyTierResponse'
    LoyaltyTierRequestData:
      type: object
      description: Loyalty Tier Update Request Data
      properties:
        data:
          $ref: '#/components/schemas/LoyaltyTierRequest'
      title: LoyaltyTierRequestData
    ErrorDetails:
      type: object
      description: Contains error information if the requested upgrade/downgrade is declined.
      properties:
        code:
          type: string
          description: Error code describing the type of HTTP error.
        detail:
          type: string
          description: A brief message describing the reason for failure to assist with troubleshooting.
    LoyaltyTierRequest:
      type: object
      description: Loyalty Tier Request Data
      properties:
        tierUpdateRequestList:
          type: array
          items:
            $ref: '#/components/schemas/TierUpdateRequest'
        transactionReferenceId:
          type: string
      required:
      - tierUpdateRequestList
      - transactionReferenceId
      title: LoyaltyTierRequest
    TierUpdateRequest:
      type: object
      description: Contains account information, current and new tier codes etc.
      properties:
        currentTierCode:
          type: string
        externalAccountId:
          type: string
          example: 2286f91c-f7a8-3771-8e62-cb4833aeb740
        issueCard:
          type: boolean
        last4OfCardNumber:
          type: string
          example: '4556'
        memberId:
          type: string
        newTierCode:
          type: string
          example: ICON
        newTierCodeExpiryDate:
          type: string
      required:
      - externalAccountId
      - last4OfCardNumber
      - newTierCode
      title: TierUpdateRequest