Sign Customiser

Applies an RFC 7396 JSON Merge Patch to one preset: properties omitted from the body are unchanged. design replaces wholesale — it is one document, not a set of properties to merge into — so sending it replaces the whole snapshot. An empty object {} is a valid no-op.

PATCH/api/v3/customisers/{customiser_id}/presets/{preset_id}

Overview

Read-only and unknown properties are rejected, and code never changes. Requires customisers:write. An Idempotency-Key is optional here: sending one makes the update safe to retry (an exact repeat replays the original response; the same key with a different body is a 409). The update 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 theAuthorization header.

Required scope: customisers:write

Path parameters

customiser_idstringpathrequired

The customiser id.

Example: 1

preset_idstringpathrequired

The preset id.

Example: 31

Request body

namestringbody
designobjectbody

Request body example

application/json
{
  "name": "Neon script in pink",
  "design": {
    "colour": 18,
    "font": 4,
    "text": "Open"
  }
}
Update a preset
curl https://web.signcustomiser.com/api/v3/customisers/1/presets/31 \
  --request PATCH \
  --header 'Accept: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "Neon script in pink",
  "design": {
    "colour": 18,
    "font": 4,
    "text": "Open"
  }
}'
Response
{
  "data": {
    "object": "preset",
    "id": 31,
    "customiser_id": 42,
    "name": "Neon script in pink",
    "code": "a1b2c3d4e5f6",
    "design": {
      "colour": 18,
      "font": 4,
      "text": "Open"
    },
    "created_at": "2026-08-14T00:00:00Z",
    "updated_at": "2026-08-14T00:05:00Z"
  },
  "links": {
    "self": "https://web.signcustomiser.com/api/v3/customisers/42/presets/31",
    "documentation": "https://www.signcustomiser.com/help/api/"
  },
  "meta": {
    "api_version": "v3",
    "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
  }
}