> ## Documentation Index > Fetch the complete documentation index at: https://docs.brudcast.com/llms.txt > Use this file to discover all available pages before exploring further. # Get campaign statistics > Returns the campaign's message counters summed across its channels, together with the open, click, bounce and unsubscribe rates computed from them. A campaign sent on two channels counts a person addressed on both twice; use the recipient metrics endpoint to count people instead. Requires the `campaigns:read` scope. ## OpenAPI ````yaml /api-reference/openapi.json get /api/v1/user/campaigns/{id}/statistics openapi: 3.0.0 info: title: Brudcast API version: 1.0.0 servers: - url: https://core-service.prod.brudcast.com description: Production security: [] tags: - name: Analytics x-displayName: Analytics - name: Campaigns x-displayName: Campaigns - name: Contacts x-displayName: Contacts - name: Mailboxes x-displayName: Mailboxes - name: Messages x-displayName: Messages - name: Sender Identities x-displayName: Sender Identities - name: Sending Domains x-displayName: Sending Domains - name: Templates x-displayName: Templates - name: Webhooks x-displayName: Webhooks paths: /api/v1/user/campaigns/{id}/statistics: get: tags: - Campaigns summary: Get campaign statistics description: >- Returns the campaign's message counters summed across its channels, together with the open, click, bounce and unsubscribe rates computed from them. A campaign sent on two channels counts a person addressed on both twice; use the recipient metrics endpoint to count people instead. Requires the `campaigns:read` scope. parameters: - in: header name: X-Organization-Id required: false description: >- Required when authenticating with an access token. Optional with an API key, whose own organization binding is authoritative; a value contradicting it is refused with 403. schema: type: string format: uuid - in: path name: id required: true schema: type: string responses: '200': description: '' content: application/json: schema: $ref: '#/components/schemas/CampaignStatisticsResponse' '401': description: The credential is missing, malformed, revoked or expired content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: >- The key lacks the scope the endpoint requires, or the organization does not match the credential content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: No statistics row for that campaign in the organization content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: The payload or query string failed validation content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' '429': description: >- Rate limit exceeded; retry after the number of seconds in `retryAfter` content: application/json: schema: $ref: '#/components/schemas/RateLimitErrorResponse' security: - apiKey: [] - apiKeyBearer: [] components: schemas: CampaignStatisticsResponse: type: object properties: success: type: boolean example: true message: type: string data: $ref: '#/components/schemas/CampaignStatistics' required: - success - message - data ErrorResponse: type: object properties: success: type: boolean example: false message: type: string example: Resource not found code: type: string enum: - E_VALIDATION_ERROR - E_UNAUTHORIZED_ACCESS - E_UNAUTHORIZED - E_FORBIDDEN - E_INSUFFICIENT_SCOPE - E_ROW_NOT_FOUND - E_TOO_MANY_REQUESTS - E_BUSINESS_RULE_VIOLATION - E_CAMPAIGN_NOT_SENDABLE - INSUFFICIENT_CREDITS - SUBSCRIPTION_REQUIRED example: E_ROW_NOT_FOUND required: - success - message - code ValidationErrorResponse: type: object properties: success: type: boolean example: false message: type: string example: The payload is invalid code: type: string enum: - E_VALIDATION_ERROR - E_UNAUTHORIZED_ACCESS - E_UNAUTHORIZED - E_FORBIDDEN - E_INSUFFICIENT_SCOPE - E_ROW_NOT_FOUND - E_TOO_MANY_REQUESTS - E_BUSINESS_RULE_VIOLATION - E_CAMPAIGN_NOT_SENDABLE - INSUFFICIENT_CREDITS - SUBSCRIPTION_REQUIRED example: E_VALIDATION_ERROR errors: type: array items: $ref: '#/components/schemas/ValidationErrorItem' required: - success - message - code - errors RateLimitErrorResponse: type: object properties: success: type: boolean example: false message: type: string example: Too many requests code: type: string enum: - E_VALIDATION_ERROR - E_UNAUTHORIZED_ACCESS - E_UNAUTHORIZED - E_FORBIDDEN - E_INSUFFICIENT_SCOPE - E_ROW_NOT_FOUND - E_TOO_MANY_REQUESTS - E_BUSINESS_RULE_VIOLATION - E_CAMPAIGN_NOT_SENDABLE - INSUFFICIENT_CREDITS - SUBSCRIPTION_REQUIRED example: E_TOO_MANY_REQUESTS retryAfter: type: number example: 60 required: - success - message - code - retryAfter CampaignStatistics: type: object properties: id: type: string format: uuid campaignId: type: string format: uuid sent: type: number delivered: type: number opened: type: number uniqueOpened: type: number clicked: type: number uniqueClicked: type: number bounced: type: number hardBounced: type: number softBounced: type: number unsubscribed: type: number complained: type: number audienceSize: type: number nullable: true description: >- Audience frozen at dispatch, unaffected by later edits to the campaign audience channelReach: type: object additionalProperties: type: integer nullable: true description: Reach frozen at dispatch, keyed by channel openRate: type: number description: >- Unique opens over delivered as a percentage, 0 when nothing was delivered clickRate: type: number description: >- Unique clicks over delivered as a percentage, 0 when nothing was delivered bounceRate: type: number description: >- Hard and soft bounces together over sent as a percentage, 0 when nothing was sent unsubscribeRate: type: number description: >- Unsubscribes over delivered as a percentage, 0 when nothing was delivered required: - id - campaignId - sent - delivered - opened - uniqueOpened - clicked - uniqueClicked - bounced - hardBounced - softBounced - unsubscribed - complained - audienceSize - channelReach - openRate - clickRate - bounceRate - unsubscribeRate ValidationErrorItem: type: object properties: field: type: string example: emailAddress rule: type: string example: email message: type: string example: The emailAddress field must be a valid email address required: - field - rule - message securitySchemes: apiKey: type: apiKey in: header name: X-API-Key description: >- An organization API key, prefixed `bk_live_`. Takes precedence over `Authorization` when both are sent. The key is bound to one organization, and the scopes it was issued with are enforced per endpoint. apiKeyBearer: type: http scheme: bearer bearerFormat: bk_live_... description: >- The same organization API key sent as `Authorization: Bearer bk_live_...`. Accepted only when the value begins with `bk_` and no `X-API-Key` header is present. ````