openapi: 3.0.3
info:
  title: SAP BRIM (Billing and Revenue Innovation Management) SAP BRIM Convergent Balances Charging API
  description: API for real-time charging and rating of usage-based services within the SAP BRIM (Billing and Revenue Innovation Management) suite. Supports complex pricing models, prepaid and postpaid scenarios, tiered and volume-based pricing, and real-time balance management.
  version: 1.0.0
  contact:
    name: SAP Support
    email: support@sap.com
    url: https://support.sap.com
  license:
    name: SAP Developer License
    url: https://www.sap.com/about/legal/terms-of-use.html
  termsOfService: https://www.sap.com/about/legal/terms-of-use.html
servers:
- url: https://api.sap.com/convergent-charging/v1
  description: SAP API Business Hub - Production
- url: https://sandbox.api.sap.com/convergent-charging/v1
  description: SAP API Business Hub - Sandbox
security:
- OAuth2:
  - read
  - write
- ApiKeyAuth: []
tags:
- name: Charging
  description: Real-time charging operations for prepaid and postpaid accounts
paths:
  /charging/charge:
    post:
      operationId: chargeAccount
      summary: SAP BRIM (Billing and Revenue Innovation Management) Charge an account
      description: Executes a real-time charge against a subscriber account. Supports prepaid balance deduction and postpaid charge accumulation.
      tags:
      - Charging
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ChargingRequest'
      responses:
        '200':
          description: Charge executed successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChargingResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          description: Insufficient balance for prepaid charge
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /charging/refund:
    post:
      operationId: refundCharge
      summary: SAP BRIM (Billing and Revenue Innovation Management) Refund a previous charge
      description: Processes a full or partial refund for a previously executed charge. Restores prepaid balances or creates credit adjustments for postpaid.
      tags:
      - Charging
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RefundRequest'
      responses:
        '200':
          description: Refund processed successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RefundResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /charging/authorize:
    post:
      operationId: authorizeCharge
      summary: SAP BRIM (Billing and Revenue Innovation Management) Authorize a charge reservation
      description: Reserves an amount against a prepaid balance without executing the final charge. The reservation can later be confirmed or released.
      tags:
      - Charging
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AuthorizationRequest'
      responses:
        '200':
          description: Authorization successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthorizationResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          description: Insufficient balance for authorization
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /charging/authorize/{authorizationId}/confirm:
    post:
      operationId: confirmAuthorization
      summary: SAP BRIM (Billing and Revenue Innovation Management) Confirm a charge authorization
      description: Confirms a previously created authorization, converting the reserved amount into a final charge.
      tags:
      - Charging
      parameters:
      - $ref: '#/components/parameters/AuthorizationId'
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                finalAmount:
                  $ref: '#/components/schemas/MonetaryAmount'
      responses:
        '200':
          description: Authorization confirmed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChargingResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /charging/authorize/{authorizationId}/release:
    post:
      operationId: releaseAuthorization
      summary: SAP BRIM (Billing and Revenue Innovation Management) Release a charge authorization
      description: Releases a previously created authorization, restoring the reserved amount to the available balance.
      tags:
      - Charging
      parameters:
      - $ref: '#/components/parameters/AuthorizationId'
      responses:
        '200':
          description: Authorization released
          content:
            application/json:
              schema:
                type: object
                properties:
                  authorizationId:
                    type: string
                  status:
                    type: string
                    enum:
                    - RELEASED
                  releasedAt:
                    type: string
                    format: date-time
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    AuthorizationRequest:
      type: object
      required:
      - accountId
      - amount
      properties:
        accountId:
          type: string
        amount:
          $ref: '#/components/schemas/MonetaryAmount'
        expiresIn:
          type: integer
          description: Authorization expiry in seconds
          default: 3600
        serviceType:
          type: string
        description:
          type: string
    AuthorizationResponse:
      type: object
      properties:
        authorizationId:
          type: string
          format: uuid
        accountId:
          type: string
        reservedAmount:
          $ref: '#/components/schemas/MonetaryAmount'
        status:
          type: string
          enum:
          - AUTHORIZED
          - EXPIRED
          - CONFIRMED
          - RELEASED
        expiresAt:
          type: string
          format: date-time
        createdAt:
          type: string
          format: date-time
    MonetaryAmount:
      type: object
      required:
      - value
      - currency
      properties:
        value:
          type: number
          format: double
          description: The monetary value
        currency:
          type: string
          pattern: ^[A-Z]{3}$
          description: ISO 4217 currency code
    ErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            target:
              type: string
            details:
              type: array
              items:
                type: object
                properties:
                  code:
                    type: string
                  message:
                    type: string
    RefundRequest:
      type: object
      required:
      - originalChargeId
      properties:
        originalChargeId:
          type: string
          format: uuid
          description: Identifier of the original charge to refund
        amount:
          $ref: '#/components/schemas/MonetaryAmount'
        reason:
          type: string
          description: Reason for the refund
    ChargingRequest:
      type: object
      required:
      - accountId
      - amount
      - chargeType
      properties:
        accountId:
          type: string
          description: Account to charge
        amount:
          $ref: '#/components/schemas/MonetaryAmount'
        chargeType:
          type: string
          enum:
          - PREPAID
          - POSTPAID
          description: Charging model
        serviceType:
          type: string
        description:
          type: string
        externalReference:
          type: string
          description: External transaction reference
        metadata:
          type: object
          additionalProperties:
            type: string
    ChargingResponse:
      type: object
      properties:
        chargeId:
          type: string
          format: uuid
        accountId:
          type: string
        amount:
          $ref: '#/components/schemas/MonetaryAmount'
        chargeType:
          type: string
          enum:
          - PREPAID
          - POSTPAID
        status:
          type: string
          enum:
          - COMPLETED
          - PENDING
          - FAILED
        remainingBalance:
          $ref: '#/components/schemas/MonetaryAmount'
        chargedAt:
          type: string
          format: date-time
    RefundResponse:
      type: object
      properties:
        refundId:
          type: string
          format: uuid
        originalChargeId:
          type: string
          format: uuid
        amount:
          $ref: '#/components/schemas/MonetaryAmount'
        status:
          type: string
          enum:
          - COMPLETED
          - PENDING
        refundedAt:
          type: string
          format: date-time
  responses:
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Unauthorized:
      description: Authentication required or invalid credentials
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  parameters:
    AuthorizationId:
      name: authorizationId
      in: path
      required: true
      description: Unique identifier of the charge authorization
      schema:
        type: string
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://auth.sap.com/oauth/token
          scopes:
            read: Read access to charging and rating resources
            write: Write access to charging and rating resources
    ApiKeyAuth:
      type: apiKey
      in: header
      name: APIKey