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Clears one of the material's image slots and deletes the stored file, returning a receipt naming what was removed and the material as it now stands. Requires customisers:write and an Idempotency-Key.

DELETE/api/v3/customisers/{customiser_id}/materials/{material_id}/images/{image_slot}
DELETEDelete a material image
DELETE/api/v3/customisers/{customiser_id}/materials/{material_id}/images/{image_slot}

Delete a material image

Clears one of the material's image slots and deletes the stored file, returning a receipt naming what was removed and the material as it now stands. Requires `customisers:write` and an `Idempotency-Key`. Deleting from a slot that holds no image answers 404. The delete clears the customiser's cached storefront configuration and runs the advisory language sync, and never regenerates Shopify products, product images, or the product cache.

Authorisation

The Authorization header expects a Bearer token. Generate one on the API keys page in your dashboard.

Path

The customiser id.

The material id.

Which of the material's images to write (closed set): the artwork shown for the material, or the smaller picture on the button that selects it.

Delete a material image

Overview

Deleting from a slot that holds no image answers 404. The delete clears the customiser's cached storefront configuration and runs the advisory language sync, and never regenerates Shopify products, product images, or the product cache.

Authorisation

Bearer token required. Include it in the Authorization header.

Required scope: customisers:write

Path parameters

customiser_idstringpathrequired

The customiser id.

Example: 1

material_idstringpathrequired

The material id.

Example: 5

image_slotstringpathrequired

Which image to remove: image or button_image.

Example: image

Delete a material image
curl https://web.signcustomiser.com/api/v3/customisers/1/materials/5/images/image \
  --request DELETE \
  --header 'Accept: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN'
Response
{
  "data": {
    "object": "file_deletion_receipt",
    "slot": "image",
    "customiser_id": 42,
    "material_id": 5,
    "deleted": true,
    "removed_file": {
      "filename": "brushed-aluminium.png",
      "url": "https://cdn.example.com/files/2f1c9c0e-6a7b-4c1d-8e2f-3a4b5c6d7e8f.png"
    },
    "resource": {
      "object": "material",
      "id": 5,
      "customiser_id": 42,
      "name": "Brushed Aluminium",
      "description": null,
      "hexcode": "#737373",
      "excluded_backboard_ids": [],
      "excluded_mounting_ids": [],
      "base_price": 0,
      "currency": "USD",
      "price_multiplier": 1,
      "price_multiplier_target": "base_letter_price",
      "sort_order": 1,
      "image_url": null,
      "button_image_url": null,
      "created_at": "2026-08-13T00:00:00Z",
      "updated_at": "2026-08-13T00:05:00Z"
    }
  },
  "links": {
    "self": "https://web.signcustomiser.com/api/v3/customisers/42/materials/5/images/image",
    "documentation": "https://www.signcustomiser.com/help/api/"
  },
  "meta": {
    "api_version": "v3",
    "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
  }
}

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