> ## Documentation Index
> Fetch the complete documentation index at: https://docs.joinluminous.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Validate an export template draft

> Dry-run a template draft without saving. Runs the same shape rules as create/update,
compiles the Mustache markup, and flags unknown placeholders. Returns a unified
`{ valid, errors, warnings }` result.

HTTP status is `200` when `valid` is `true` and `422` when `false` — the body uses the
same shape either way. `errors` block a save; `warnings` (e.g. an unrecognized
placeholder) do not.




## OpenAPI

````yaml /api-reference/build.yaml post /export-templates/validate
openapi: 3.0.0
info:
  title: Luminous API
  version: 1.0.0
  description: API documentation for Luminous
servers:
  - url: https://{companyName}.api.joinluminous.com/external/api/v1
    variables:
      companyName:
        default: companyName
        description: Your company-specific subdomain
security: []
tags:
  - name: Products
    description: Get and manage products
  - name: Pricing
    description: Manage price schedules, levels, and customizations
  - name: BOMs
    description: Manage Bills of Materials (BOMs)
  - name: Labels
    description: Label rendering via Labelary ZPL service
  - name: Companies
    description: Manage business accounts and their associated data
  - name: Contacts
    description: Manage contact information for individuals
  - name: Suppliers
    description: Manage suppliers (factories) — vendors used on purchase orders
  - name: Supplier SKUs
    description: Manage per-supplier SKU and unit-cost overrides for products
  - name: Locations
    description: Manage warehouses and locations
  - name: Inventory
    description: Get and adjust product stock levels
  - name: Lots
    description: Create, update, and delete product lots (batches)
  - name: Transfer Orders
    description: Manage transfer orders
  - name: Fulfillment Orders
    description: Manage fulfillment orders and picklists
  - name: Freight
    description: >-
      Freightview LTL freight — quotes, booking and documents for fulfillment
      orders
  - name: Fulfillment Priority Lists
    description: Configure fulfillment routing priority lists
  - name: Purchase Orders
    description: Get and modify purchase orders
  - name: Supplier Portal
    description: >-
      Read a supplier's response to a purchase order and control the one-click
      portal link
  - name: Receiving Reports
    description: Manage receiving reports
  - name: Payment Obligations
    description: Manage payment obligations for purchase orders
  - name: Sales Orders
    description: Manage sales orders and sales order shipments
  - name: Purgatory
    description: >-
      Inspect and resolve non-posted sales orders in the purgatory staging
      workflow
  - name: PickFlow Warehouse
    description: >-
      Warehouse-floor lookups for PickFlow — barcode resolution, bin and product
      stock, bin search, and receivables
  - name: PickFlow Shipping
    description: >-
      Provider-agnostic shipping rates, services, packages, and label purchase
      for PickFlow
  - name: Cycle Counts
    description: >-
      Create, drive, and post PickFlow cycle counts — batches, per-warehouse
      sessions, and CSV import/export
  - name: Print Stations
    description: List paired print stations and enqueue print jobs to them
  - name: Invoices
    description: Get and manage invoices
  - name: Work Orders
    description: >-
      Manage work orders — production lifecycle, steps, materials, links,
      shipments, and comments
  - name: Production Batches
    description: Group and manage work orders as production batches
  - name: Bills
    description: >-
      Accounts payable bill management, payments, attachments, allocations, and
      variance
  - name: Prepayments
    description: Manage vendor prepayments and applications
  - name: Vendor Credits
    description: Manage vendor credits and applications
  - name: Vendor Returns
    description: Manage vendor returns and credit generation
  - name: Customer Returns
    description: Manage customer returns (sales returns), receiving, and restock behavior
  - name: Stock Snapshot
    description: Point-in-time stock snapshots with export support
  - name: Consumption
    description: Consumption reports and exports
  - name: Inventory Aging
    description: Cost-layer-based inventory aging reports
  - name: Bills Reports
    description: Accounts payable bills aging reports
  - name: Forecast
    description: Materialized forecast data
  - name: Reports
    description: Close the books, inventory discrepancy, transaction COGS, and EDI reports
  - name: Tags
    description: Add/remove tags across various resources
  - name: Custom Fields
    description: Get and set custom fields across various resources
  - name: Currency
    description: Currency configuration, exchange rates, and conversion
  - name: Drive
    description: >
      Browse, upload, tag and manage files in your Luminous Drive. An API token
      sees the shared

      drive only, never My Files or restricted folders and files. Every write
      and download made

      through the API is recorded in the file's activity log (`GET
      /file-cabinet/files/{id}/activity`)

      with `actor_kind: api_token`.
  - name: Integration Mappings
    description: Manage integration mappings for external systems
  - name: Integration Field Mappings
    description: Manage field-level mappings between Luminous and external systems
  - name: Automations
    description: Create, test, and inspect automation rules and their runs
paths:
  /export-templates/validate:
    post:
      tags:
        - Export Templates
      summary: Validate an export template draft
      description: >
        Dry-run a template draft without saving. Runs the same shape rules as
        create/update,

        compiles the Mustache markup, and flags unknown placeholders. Returns a
        unified

        `{ valid, errors, warnings }` result.


        HTTP status is `200` when `valid` is `true` and `422` when `false` — the
        body uses the

        same shape either way. `errors` block a save; `warnings` (e.g. an
        unrecognized

        placeholder) do not.
      operationId: validateExportTemplate
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - type
                - fields
              properties:
                name:
                  type: string
                  maxLength: 255
                  description: Optional template name (used only for messaging).
                type:
                  type: string
                  description: Template type to validate against.
                  example: packing_slip
                fields:
                  type: object
                  additionalProperties: true
                  description: Raw template body to validate.
            example:
              type: packing_slip
              fields:
                render_mode: html
                page:
                  size: A4
                  orientation: Portrait
                headerHtml: '<h1>Packing Slip #{{orderNumber}}</h1>'
                itemsHeaderHtml: <tr><th>SKU</th></tr>
                itemRowHtml: '{{#orderLines}}<tr><td>{{sku}}</td></tr>{{/orderLines}}'
                footerHtml: <div>{{fakeField}}</div>
      responses:
        '200':
          description: Draft is valid.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      valid:
                        type: boolean
                        description: >-
                          Whether the draft passed all blocking rules and
                          compiled cleanly.
                      errors:
                        type: array
                        description: >-
                          Blocking problems (shape rule failures, Mustache
                          compile errors). A save would fail while non-empty.
                        items:
                          type: string
                      warnings:
                        type: array
                        description: >-
                          Non-blocking advisories, such as placeholders not
                          found in the type's catalogue.
                        items:
                          type: string
              example:
                data:
                  valid: true
                  errors: []
                  warnings: []
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
        '422':
          description: >-
            Draft is invalid — see `errors`. Body uses the same `{ valid,
            errors, warnings }` shape.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      valid:
                        type: boolean
                        description: >-
                          Whether the draft passed all blocking rules and
                          compiled cleanly.
                      errors:
                        type: array
                        description: >-
                          Blocking problems (shape rule failures, Mustache
                          compile errors). A save would fail while non-empty.
                        items:
                          type: string
                      warnings:
                        type: array
                        description: >-
                          Non-blocking advisories, such as placeholders not
                          found in the type's catalogue.
                        items:
                          type: string
              example:
                data:
                  valid: false
                  errors:
                    - >-
                      The fields.page.size field is required when
                      fields.render_mode is html.
                  warnings:
                    - >-
                      Unknown placeholder {{fakeField}} in footerHtml (not in
                      catalogue for packing_slip)
      security:
        - BearerAuth: []
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        Authenticate using a bearer token. To create a token, navigate to
        /settings/api-tokens and click Create API Token.

````

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