> ## Documentation Index > Fetch the complete documentation index at: https://docs.interchange.io/llms.txt > Use this file to discover all available pages before exploring further. # Amend a demand exchange revision > Re-run the merchandising engine with newly declared overrides on an existing draft (including a rejected draft), in place — the SAME revision row, not a new one. Bumps the submission generation so any stale pending approval no longer applies, clears the decision record (decider, decided-at, notes), and counts against the exchange's lifetime adjustment limit. Refused with a named reason when the revision is not currently a draft. Scoped to the caller's storefront. ## OpenAPI ````yaml /v2/storefront-api-v2.yaml post /demand-inbox/{runId}/exchange/revisions/{revisionId}/amend openapi: 3.0.0 info: title: Scope3 Storefront API version: 2.0.0 description: |- REST API for partners to manage storefronts, 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 storefronts - name: AI Usage description: Storefront AI token usage visibility by model - name: MCP description: Model Context Protocol endpoints paths: /demand-inbox/{runId}/exchange/revisions/{revisionId}/amend: post: tags: - Storefront summary: Amend a demand exchange revision description: >- Re-run the merchandising engine with newly declared overrides on an existing draft (including a rejected draft), in place — the SAME revision row, not a new one. Bumps the submission generation so any stale pending approval no longer applies, clears the decision record (decider, decided-at, notes), and counts against the exchange's lifetime adjustment limit. Refused with a named reason when the revision is not currently a draft. Scoped to the caller's storefront. operationId: amendDemandExchangeRevision parameters: - in: path name: runId schema: type: integer maximum: 9007199254740991 minimum: 1 required: true - in: path name: revisionId schema: type: integer maximum: 9007199254740991 minimum: 1 required: true requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/AmendDemandExchangeRevisionBody' responses: '200': description: Amend a demand exchange revision content: application/json: schema: $ref: '#/components/schemas/DemandExchangeRevision' '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: Only the composer of this draft can amend it. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: No matching revision in the calling storefront. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: Only a draft revision can be amended. 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: AmendDemandExchangeRevisionBody: description: >- Re-declare posture, price, and product-count overrides and re-compose a draft revision in place through the real merchandising engine. Valid only against a draft (fresh or rejected); clears any prior decision record and counts against the lifetime adjustment cap. type: object properties: overrides: type: object properties: posture: type: object properties: selectedPosture: type: string enum: - direct_fit - hold_value - value_preserving_compromise - tradeoff_ladder - price_first - wholesale_mirror required: - selectedPosture additionalProperties: false pricing: type: object properties: priceAdjustmentBasisPoints: type: integer minimum: -10000 maximum: 100000 floorCpm: type: object properties: amount: type: number minimum: 0 currency: type: string minLength: 3 maxLength: 3 required: - amount - currency additionalProperties: false additionalProperties: false rules: type: object properties: requiredBundleIds: maxItems: 100 type: array items: type: string minLength: 1 excludedBundleIds: maxItems: 100 type: array items: type: string minLength: 1 maxProducts: type: integer maximum: 100 minimum: 1 additionalProperties: false additionalProperties: false required: - overrides DemandExchangeRevision: description: >- A seller-composed adjustment to a live demand exchange: silent while draft or awaiting approval, and a real pass on the exchange's compose run once sent. type: object properties: id: type: string exchangeId: type: string state: type: string enum: - draft - awaiting_approval - sent - discarded overrides: type: object properties: posture: type: object properties: selectedPosture: type: string enum: - direct_fit - hold_value - value_preserving_compromise - tradeoff_ladder - price_first - wholesale_mirror required: - selectedPosture additionalProperties: false pricing: type: object properties: priceAdjustmentBasisPoints: type: integer minimum: -10000 maximum: 100000 floorCpm: type: object properties: amount: type: number minimum: 0 currency: type: string minLength: 3 maxLength: 3 required: - amount - currency additionalProperties: false additionalProperties: false rules: type: object properties: requiredBundleIds: maxItems: 100 type: array items: type: string minLength: 1 excludedBundleIds: maxItems: 100 type: array items: type: string minLength: 1 maxProducts: type: integer maximum: 100 minimum: 1 additionalProperties: false additionalProperties: false composeResult: type: string enum: - ok - error composeError: description: >- The merchandising engine's own error, kept mounted (with the seller's declared overrides) when composition failed, rather than the sheet being torn down. nullable: true allOf: - $ref: '#/components/schemas/DemandExchangeRevisionComposeError' proposalPreview: description: >- The draft response envelope, in the same shape the canonical proposal card already renders (redacted). Null when compose failed. nullable: true proposalPreviewSnapshots: description: >- The draft product snapshots keyed by product id, paired with proposalPreview so the canonical proposal card renders a draft with no builder-specific projection. Null when compose failed. nullable: true settlementCurrency: nullable: true type: string buyerStatedCurrencies: description: >- Read once from the persisted brief request at compose time. A draft never converts into these or issues a rate hold — that is the buyer-facing response path's job, not a discardable draft's. nullable: true type: array items: type: string composedByUserId: nullable: true type: integer minimum: -9007199254740991 maximum: 9007199254740991 composedAt: type: string approval: $ref: '#/components/schemas/DemandExchangeRevisionApproval' send: $ref: '#/components/schemas/DemandExchangeRevisionSend' sentProposalArtifactId: nullable: true type: string delivery: description: >- Truthful buyer-visibility (build-5 ruling): null until sent. A sent revision always reports not_delivered/no_delivery_lane today — investigation found no seller-to-buyer lane for a subsequent proposal and no honest staging lane either. The UI states the buyer's agent was not notified; it never claims a notification that did not happen. nullable: true type: object properties: status: type: string enum: - not_delivered reason: type: string enum: - no_delivery_lane required: - status - reason additionalProperties: false canApprove: description: >- False when the caller is this revision's own composer (maker-checker) or the revision is not awaiting approval. type: boolean canAmend: description: >- True for a draft (fresh or bounced back after rejection) composed by the caller; false once submitted, sent, or discarded, or when a different storefront user composed it. type: boolean canSubmit: description: >- True when the caller composed this draft, it hasn't been submitted, sent, or discarded, and its last compose succeeded. A draft whose compose failed can only be discarded or re-composed via amend. type: boolean canDiscard: description: >- True for a draft (fresh or bounced back after rejection) composed by the caller; false once submitted, sent, or discarded, or when a different storefront user composed it. type: boolean submissionGeneration: description: >- Bumped on every submit, resubmit, and amend. A decision must be made against this exact value or it is refused as stale. type: integer minimum: -9007199254740991 maximum: 9007199254740991 amendCount: description: >- How many times this row has been amended in place. Counts toward the lifetime adjustment cap alongside the row itself. type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - id - exchangeId - state - overrides - composeResult - composeError - proposalPreview - proposalPreviewSnapshots - settlementCurrency - buyerStatedCurrencies - composedByUserId - composedAt - approval - send - sentProposalArtifactId - delivery - canApprove - canAmend - canSubmit - canDiscard - submissionGeneration - amendCount additionalProperties: false ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false DemandExchangeRevisionComposeError: type: object properties: code: type: string message: type: string required: - code - message additionalProperties: false DemandExchangeRevisionApproval: type: object properties: gate: description: >- Null before the revision is ever submitted. Cleared back to null (with decidedAt/decidedByUserId/notes) on every resubmission after a rejection, so a pending revision never reports a decision nobody has made against THIS submission. nullable: true type: string enum: - pending - approved - rejected decidedByUserId: nullable: true type: integer minimum: -9007199254740991 maximum: 9007199254740991 decidedAt: nullable: true type: string notes: nullable: true type: string required: - gate - decidedByUserId - decidedAt - notes additionalProperties: false DemandExchangeRevisionSend: description: >- How a sent revision cleared. Null until sent. An auto send never carries a human decision record. type: object properties: mode: nullable: true type: string enum: - manual - auto autoApproveReason: nullable: true type: string enum: - storefront_auto_approve - buyer_auto_approve required: - mode - autoApproveReason additionalProperties: false ApiError: description: Structured error object type: object properties: code: description: Machine-readable error code type: string message: description: Human-readable error message type: string field: description: Field path associated with the error type: string details: description: Additional error context type: object additionalProperties: {} required: - code - message additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````