> ## Documentation Index > Fetch the complete documentation index at: https://docs.trackup.me/llms.txt > Use this file to discover all available pages before exploring further. # Update a pixel > Update a pixel belonging to the project. Required permission: pixel.update. ## OpenAPI ````yaml https://api.trackup.me/openapi.json put /v1/projects/{id}/pixels/{pixelId} openapi: 3.1.0 info: title: Trackup API description: >- API-key-accessible Trackup operations. Send your key in the `X-Api-Key` header. Keys belong to a team. `X-Team-Id` is not required; if supplied, it must match that team. Each operation lists its required key permission. The key creator must remain a team member and normally hold that permission. The ingest-only permissions `visitor.create`, `conversion.create`, and `request.create` do not need to be held by the creator. Project access and selection are described per operation. Session-only account, administration and OAuth operations are not part of this reference. The same operations are available as MCP tools at `/mcp` (Streamable HTTP). Authenticate with `X-Api-Key` or connect through OAuth, which issues an API key on consent. Schema validation errors return HTTP 422 with an `errors` object. Other errors generally contain `error` and `message`; operation-specific responses describe exceptions. version: 1.0.0 servers: - url: / description: Current API environment security: - ApiKey: [] paths: /v1/projects/{id}/pixels/{pixelId}: put: tags: - Pixels summary: Update a pixel description: >- Update a pixel belonging to the project. Required permission: pixel.update. operationId: updatePixel parameters: - in: path name: id schema: type: string format: uuid required: true - in: path name: pixelId schema: type: string format: uuid required: true requestBody: required: true content: application/json: schema: anyOf: - type: object properties: name: type: string minLength: 1 maxLength: 255 enabled: type: boolean additionalProperties: false - oneOf: - type: object properties: type: type: string const: meta name: type: string minLength: 1 maxLength: 255 enabled: type: boolean config: type: object properties: pixelId: type: string minLength: 1 accessToken: type: string minLength: 1 testEventCode: type: string required: - pixelId - accessToken required: - type - type: object properties: type: type: string const: google name: type: string minLength: 1 maxLength: 255 enabled: type: boolean config: type: object properties: conversionId: type: string minLength: 1 defaultValue: type: number defaultCurrency: type: string required: - conversionId required: - type - type: object properties: type: type: string const: kwai name: type: string minLength: 1 maxLength: 255 enabled: type: boolean config: type: object properties: pixelId: type: string minLength: 1 accessToken: type: string minLength: 1 testEventCode: type: string minLength: 1 required: - pixelId - accessToken - testEventCode required: - type - type: object properties: type: type: string const: tiktok name: type: string minLength: 1 maxLength: 255 enabled: type: boolean config: type: object properties: pixelCode: type: string minLength: 1 accessToken: type: string minLength: 1 testEventCode: type: string minLength: 1 required: - pixelCode - accessToken - testEventCode required: - type responses: '200': description: Successful response. content: application/json: schema: $ref: '#/components/schemas/UpdatedPixel' '400': description: Malformed request or an invalid operation. content: application/json: schema: $ref: '#/components/schemas/ApiError' '401': description: The X-Api-Key header is missing or the API key is invalid. content: application/json: schema: $ref: '#/components/schemas/ApiError' '403': description: >- The key is expired, revoked, lacks permission, or its creator no longer has the required team access. A conflicting X-Team-Id is also rejected. content: application/json: schema: $ref: '#/components/schemas/ApiError' '404': description: >- The requested resource was not found or is outside the permitted scope. content: application/json: schema: $ref: '#/components/schemas/ApiError' '422': description: >- Invalid input. Each field path maps to its first validation message; _form identifies an object-level error. content: application/json: schema: $ref: '#/components/schemas/ValidationError' '500': description: An unexpected error occurred. content: application/json: schema: $ref: '#/components/schemas/ApiError' components: schemas: UpdatedPixel: type: object properties: id: type: string projectId: type: string type: type: string enum: - meta - google - kwai - tiktok name: type: string enabled: type: boolean config: type: object additionalProperties: {} updatedAt: type: string required: - id - projectId - type - name - enabled - config - updatedAt example: id: 33333333-3333-4333-8333-333333333333 projectId: 11111111-1111-4111-8111-111111111111 type: meta name: Store purchases enabled: true config: pixelId: '123456789012345' accessToken: example-meta-access-token testEventCode: TEST12345 updatedAt: '2026-10-26T12:30:00.000Z' ApiError: type: object properties: error: type: string message: type: string required: - error - message additionalProperties: true ValidationError: type: object properties: errors: type: object additionalProperties: type: string required: - errors securitySchemes: ApiKey: type: apiKey in: header name: X-Api-Key ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.