curl --request POST \
  --url https://marketplace-api.fabric.inc/v1/brands/{brand_id}/proposals/{id}/apply-transformer/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "Eco-Friendly Tumbler Set",
  "status": "draft",
  "source": "console",
  "proposal_type": "new_product",
  "return_reason_detail": "Incorrect pricing on listed item.",
  "push_to_shopify": true,
  "end_at": "2025-06-30T23:59:59Z",
  "item_skipped_count": 3,
  "has_price_changes": false,
  "target_live_date": "2025-07-01T00:00:00Z",
  "start_at": "2025-05-01T00:00:00Z",
  "expires_at": "2025-07-31T23:59:59Z",
  "draft_proposed_at": "2025-04-20T12:00:00Z",
  "acknowledged_at": "2025-04-22T09:00:00Z",
  "proposed_at": "2025-04-23T10:00:00Z",
  "archived_at": "2025-08-01T10:00:00Z",
  "revised_at": "2025-04-25T15:00:00Z",
  "approved_at": "2025-05-01T10:00:00Z",
  "declined_at": "2025-05-02T12:00:00Z",
  "pricing_approved_at": "2025-05-03T14:00:00Z",
  "completed_at": "2025-05-05T16:00:00Z",
  "withdrawn_at": "2025-05-06T09:30:00Z",
  "withdraw_reason": "Vendor no longer supports product line."
}'

{
  "id": 101,
  "name": "Winter 2025 Collection Update",
  "status": "proposed",
  "source": "console",
  "proposal_type": "new_product",
  "recipient": "retailer_456",
  "sender": "supplier_123",
  "memos": "Initial draft submitted by merchandising team.",
  "created_by": "user_789",
  "connection": "integration_abc",
  "retailer": "Fashion Retail Co.",
  "brand": "FrostWear",
  "department": "Apparel",
  "return_reason": "Insufficient pricing justification",
  "return_reason_detail": "Missing supplier cost comparison documentation.",
  "products": "[{ product_id: 202, name: 'Arctic Parka' }]",
  "push_to_shopify": true,
  "shopify_template": "default_fashion_template",
  "export_platform_template": "standard_export_v1",
  "attachments": "[{ filename: 'lookbook.pdf' }]",
  "end_at": "2025-09-30T23:59:59Z",
  "issues_summary": "Missing product images for 3 items",
  "is_acknowledged": false,
  "item_approved_count": 5,
  "item_deleted_count": 0,
  "item_rejected_count": 1,
  "item_skipped_count": 2,
  "item_count": "10",
  "item_classified_count": "8",
  "item_ready_count": "6",
  "item_failed_count": "1",
  "action_required": "Upload missing product photos",
  "has_action": "yes",
  "has_revision": "true",
  "has_unresolved_issues": true,
  "has_price_changes": true,
  "collaborators": "user_789, user_321",
  "target_live_date": "2025-10-01T00:00:00Z",
  "start_at": "2025-04-01T00:00:00Z",
  "expires_at": "2025-06-01T00:00:00Z",
  "updated_at": "2025-04-22T15:30:00Z",
  "created_at": "2025-04-20T08:45:00Z",
  "draft_proposed_at": "2025-04-10T12:00:00Z",
  "acknowledged_at": "2025-04-15T09:30:00Z",
  "proposed_at": "2025-04-20T10:00:00Z",
  "archived_at": "2025-04-22T17:00:00Z",
  "revised_at": "2025-04-21T14:15:00Z",
  "approved_at": "2025-04-25T11:00:00Z",
  "declined_at": "2025-04-26T10:30:00Z",
  "pricing_approved_at": "2025-04-24T13:45:00Z",
  "completed_at": "2025-04-28T16:00:00Z",
  "withdrawn_at": "2025-04-27T08:00:00Z",
  "withdraw_reason": "The product line was discontinued by the supplier.",
  "tags": "seasonal,featured,high-priority"
}