Customiser mounting colours
Update a mounting colour
Applies an RFC 7396 JSON Merge Patch to one mounting colour: properties
omitted from the body are unchanged, and null clears a nullable property
(description, the minimum sizes). Arrays are replaced wholesale, so
sending mounting_ids replaces the whole list.
Overview
Read-only and unknown
fields are rejected. An empty object {} is a valid no-op. Requires
customisers:write.
hexcode and opacity are two views of one stored colour, so a patch
naming either keeps the other. The colour cannot be cleared and
mounting_ids cannot be emptied: either would leave a colour the
storefront never shows.
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
The customiser id.
Example: 1
The mounting colour id.
Example: 14
Request body
Request body example
{
"name": "Brushed Steel",
"description": "A satin brushed stainless finish",
"hexcode": "#b5b5b5",
"opacity": 0.8,
"applied_to_visualisation": true,
"mounting_ids": [
8
],
"min_width_cm": 30,
"min_height_cm": 10,
"base_price": 500
}curl https://web.signcustomiser.com/api/v3/customisers/1/mounting-colours/14 \
--request PATCH \
--header 'Accept: application/json' \
--header 'Authorization: Bearer YOUR_API_TOKEN' \
--header 'Content-Type: application/json' \
--data '{
"name": "Brushed Steel",
"description": "A satin brushed stainless finish",
"hexcode": "#b5b5b5",
"opacity": 0.8,
"applied_to_visualisation": true,
"mounting_ids": [
8
],
"min_width_cm": 30,
"min_height_cm": 10,
"base_price": 500
}'{
"data": {
"object": "mounting_colour",
"id": 14,
"customiser_id": 42,
"name": "Brushed Steel",
"description": "A satin brushed stainless finish",
"hexcode": "#b5b5b5",
"opacity": 0.8,
"applied_to_visualisation": true,
"mounting_ids": [
8
],
"min_width_cm": null,
"min_height_cm": null,
"min_size_rule": "any",
"base_price": 500,
"currency": "USD",
"price_multiplier": 1,
"price_multiplier_target": "base_letter_price",
"sort_order": 1,
"preview_image_url": null,
"example_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/mounting-colours/14",
"documentation": "https://www.signcustomiser.com/help/api/"
},
"meta": {
"api_version": "v3",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
}{
"type": "https://www.signcustomiser.com/help/api/problems/malformed_json",
"title": "Malformed JSON",
"status": 400,
"code": "malformed_json",
"detail": "The request body is not valid JSON: Syntax error.",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/missing_api_key",
"title": "Missing API key",
"status": 401,
"code": "missing_api_key",
"detail": "Provide a store API key as a bearer token.",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/insufficient_scope",
"title": "Insufficient scope",
"status": 403,
"code": "insufficient_scope",
"detail": "This operation requires the customisers:write scope.",
"required_scopes": [
"customisers:write"
],
"granted_scopes": [
"customisers:read"
],
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/resource_not_found",
"title": "Resource not found",
"status": 404,
"code": "resource_not_found",
"detail": "The requested resource does not exist or does not belong to the authenticated store.",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/idempotency_key_conflict",
"title": "Idempotency key conflict",
"status": 409,
"code": "idempotency_key_conflict",
"detail": "This Idempotency-Key was already used for a different request body on this operation.",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/request_too_large",
"title": "Request too large",
"status": 413,
"code": "request_too_large",
"detail": "The request body must not exceed 2 MiB.",
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/validation_failed",
"title": "Validation failed",
"status": 422,
"code": "validation_failed",
"detail": "The request payload failed validation.",
"errors": [
{
"pointer": "/preview_image_url",
"code": "prohibited",
"detail": "The preview image url field is prohibited."
}
],
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}{
"type": "https://www.signcustomiser.com/help/api/problems/rate_limited",
"title": "Too many requests",
"status": 429,
"code": "rate_limited",
"detail": "You have exceeded the request limit for this API key.",
"retry_after": 37,
"request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}