> ## Documentation Index > Fetch the complete documentation index at: https://docs.semicola.com/llms.txt > Use this file to discover all available pages before exploring further. # Seller proposals for a campaign (latest or one execution) ## OpenAPI ````yaml /openapi/buyer.yaml get /api/v2/buyer/campaigns/{id}/proposals openapi: 3.1.0 info: title: Semicola Exchange buyer API version: 2.0.0 description: >- Buyer endpoints: advertisers, storefronts and connections, product discovery, campaigns, proposals, media buys, creatives and reporting. Every write accepts an Idempotency-Key header. servers: - url: https://api.semicola.com security: - bearerAuth: [] - sessionCookie: [] tags: - name: Advertisers - name: Storefronts - name: Product Discovery - name: Campaigns - name: Media Buys - name: Creatives - name: Reporting - name: Event Sources - name: Webhooks - name: Tasks - name: Audit Logs paths: /api/v2/buyer/campaigns/{id}/proposals: get: tags: - Product Discovery summary: Seller proposals for a campaign (latest or one execution) operationId: getBuyerCampaignsByIdProposals parameters: - name: id in: path required: true schema: type: string minLength: 1 - name: executionId in: query required: false schema: type: string responses: '200': description: OK content: application/json: schema: type: object properties: data: anyOf: - type: object properties: state: type: string enum: - ok - empty - permission - error - loading stateMessage: type: string campaignId: type: string campaignName: type: string campaignRevision: type: integer minimum: 0 maximum: 9007199254740991 executionId: type: - string - 'null' executionStatus: anyOf: - type: string enum: - running - complete - partial - failed - type: 'null' progress: type: object properties: asked: type: integer minimum: 0 maximum: 9007199254740991 responded: type: integer minimum: 0 maximum: 9007199254740991 pending: type: integer minimum: 0 maximum: 9007199254740991 failed: type: integer minimum: 0 maximum: 9007199254740991 label: type: string required: - asked - responded - pending - failed - label additionalProperties: false sellers: type: array items: type: object properties: seller: type: object properties: sellerId: type: integer exclusiveMinimum: 0 maximum: 9007199254740991 name: type: string logoUrl: type: - string - 'null' required: - sellerId - name - logoUrl additionalProperties: false status: type: string enum: - pending - quoted - products - failed - timeout error: type: - string - 'null' latencyMs: anyOf: - type: integer minimum: 0 maximum: 9007199254740991 - type: 'null' proposals: type: array items: type: object properties: proposalId: type: string seller: type: object properties: sellerId: type: integer exclusiveMinimum: 0 maximum: 9007199254740991 name: type: string logoUrl: type: - string - 'null' required: - sellerId - name - logoUrl additionalProperties: false storefrontName: type: string salesAgentName: type: - string - 'null' name: type: string rationale: type: string disposition: type: string enum: - pitch - counter_pitch placements: type: integer minimum: 0 maximum: 9007199254740991 budgetText: type: string budgetGuidance: anyOf: - type: object properties: min: type: string pattern: ^-?\d+(\.\d{1,6})?$ recommended: type: string pattern: ^-?\d+(\.\d{1,6})?$ max: type: string pattern: ^-?\d+(\.\d{1,6})?$ currency: type: string pattern: ^[A-Z]{3}$ required: - currency additionalProperties: false - type: 'null' allocations: type: array items: type: object properties: productId: type: string productName: type: string allocationPercentage: anyOf: - type: number minimum: 0 maximum: 100 - type: 'null' rationale: type: - string - 'null' required: - productId - productName - allocationPercentage - rationale additionalProperties: false limitations: type: array items: type: object properties: field: type: string requested: type: - string - 'null' supported: type: - string - 'null' note: type: string required: - field - requested - supported - note additionalProperties: false expiresAt: anyOf: - type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$ - type: 'null' selected: type: boolean refinedFrom: type: - string - 'null' required: - proposalId - seller - storefrontName - salesAgentName - name - rationale - disposition - placements - budgetText - budgetGuidance - allocations - limitations - expiresAt - selected - refinedFrom additionalProperties: false required: - seller - status - error - latencyMs - proposals additionalProperties: false selectedProposalIds: type: array items: type: string required: - state - campaignId - campaignName - campaignRevision - executionId - executionStatus - progress - sellers - selectedProposalIds additionalProperties: false - type: 'null' error: anyOf: - type: object properties: code: type: string message: type: string field: type: string details: {} required: - code - message additionalProperties: false - type: 'null' required: - data - error additionalProperties: false default: description: >- Error envelope `{data: null, error: {code, message, field?, details?}}`. components: securitySchemes: bearerAuth: type: http scheme: bearer description: API key or OAuth access token. sessionCookie: type: apiKey in: cookie name: sc_session ````