> ## Documentation Index > Fetch the complete documentation index at: https://docs.apostra.com/llms.txt > Use this file to discover all available pages before exploring further. # Change only the named fields of a product for an ad server source > Apply a partial update to a wholesale product on the ad server source's upstream tenant. Only the fields present in the body are applied; a field you omit — or send as `null` — keeps its stored value, and `inventory` merges one level deep. Prefer this over the full-replace PUT unless you hold a complete product — a replace clears the pricing options, channels and targeting it does not re-send. A partial update may leave a product incomplete, in which case it stays out of the buyer-facing catalog until it is completed. The response body is the upstream adapter's payload and varies by ad server. ## OpenAPI ````yaml /v2/storefront-api-v2.yaml patch /esa/{esaId}/products/{productId} openapi: 3.0.0 info: title: Scope3 Storefront API version: 2.0.0 description: >- REST API for partners to manage Seller Accounts, inventory sources, and billing. ## Authentication All endpoints require a Bearer token in the Authorization header: ``` Authorization: Bearer your-api-key ``` ## Base URL `https://api.interchange.io/api/v2/storefront` ## For AI Agents AI agents can use the MCP endpoint at `/mcp/v2/storefront` with three tools: - `initialize`: Start an MCP session - `api_call`: Make REST API calls - `ask_about_capability`: Learn about API features servers: - url: https://api.interchange.io/api/v2/storefront description: Production server security: [] tags: - name: Account description: Account management, service tokens, and preferences - name: Asks description: >- What you are waiting on Scope3 for — support, product, and supply asks in one list - name: Storefront description: Manage storefront and inventory sources - name: Storefront Agents description: List and manage registered sales, signals, and outcomes agents - name: Storefront Activity description: Audit log of configuration and inventory changes on the storefront - name: Storefront Billing description: Payout bank details and billing configuration for Seller Accounts - name: AI Usage description: Seller Account AI token usage visibility by model - name: MCP description: Model Context Protocol endpoints paths: /esa/{esaId}/products/{productId}: patch: tags: - Storefront Ad Server Catalog summary: Change only the named fields of a product for an ad server source description: >- Apply a partial update to a wholesale product on the ad server source's upstream tenant. Only the fields present in the body are applied; a field you omit — or send as `null` — keeps its stored value, and `inventory` merges one level deep. Prefer this over the full-replace PUT unless you hold a complete product — a replace clears the pricing options, channels and targeting it does not re-send. A partial update may leave a product incomplete, in which case it stays out of the buyer-facing catalog until it is completed. The response body is the upstream adapter's payload and varies by ad server. operationId: patchEsaProduct parameters: - in: path name: esaId schema: type: integer minimum: 0 exclusiveMinimum: true maximum: 9007199254740991 description: >- Ad server source connection id. The wire field remains `esaId` for API compatibility. example: 123 required: true description: >- Ad server source connection id. The wire field remains `esaId` for API compatibility. - in: path name: productId schema: type: string minLength: 1 description: Upstream product id for the ad server source. example: prod_abc required: true description: Upstream product id for the ad server source. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/EsaProductPatchBody' responses: '200': description: Change only the named fields of a product for an ad server source '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: >- No ad server source or product with this id, or the source is deactivated. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: EsaProductPatchBody: type: object properties: wholesale_product_id: nullable: true type: string minLength: 1 maxLength: 100 name: nullable: true type: string minLength: 1 maxLength: 200 description: nullable: true type: string status: nullable: true type: string delivery_type: nullable: true type: string channels: nullable: true type: array items: anyOf: - anyOf: - type: string enum: - display - type: string enum: - olv - type: string enum: - social - type: string enum: - search - type: string enum: - ctv - type: string enum: - linear_tv - type: string enum: - radio - type: string enum: - streaming_audio - type: string enum: - podcast - type: string enum: - dooh - type: string enum: - ooh - type: string enum: - print - type: string enum: - cinema - type: string enum: - email - type: string enum: - gaming - type: string enum: - retail_media - type: string enum: - influencer - type: string enum: - affiliate - type: string enum: - product_placement - type: string enum: - sponsored_intelligence - type: string enum: - audio - type: string enum: - video format_options: nullable: true type: array items: type: object additionalProperties: {} inventory: nullable: true type: object additionalProperties: {} pricing_options: nullable: true type: array items: type: object additionalProperties: {} additionalProperties: {} description: >- Partial change body for an ad-server-source product. Only the fields present are applied; an omitted field — or one sent as null — keeps its stored value, and `inventory` merges one level deep. Unknown/extra fields are forwarded as-is. ErrorResponse: type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false description: Standard error response ApiError: type: object properties: code: type: string description: Machine-readable error code message: type: string description: Human-readable error message field: description: Field path associated with the error type: string details: description: Additional error context type: object additionalProperties: {} required: - code - message additionalProperties: false description: Structured error object securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````