Changelog

Sign Customiser’s previous-generation public API is now deprecated. Existing integrations continue to work, but developers should move to API v3 before the scheduled 22 January 2027 Sunset.

The new v2 to v3 migration guide maps every previous-generation operation to its v3 replacement. It also covers scoped Store-bound keys, pricing field changes, webhook subscriptions, order and product writes, error handling, pagination, and a safe cutover sequence that avoids duplicate writes.

Deprecated responses now include standard Deprecation, Sunset, and Link headers. These make the timeline and migration guide visible to API clients without changing existing response bodies, status codes, validation, or authentication behaviour.

Sign Customiser now gives merchants a stable CSS class for each part of the customer customiser. Existing custom CSS can target controls and states more precisely, without relying on generated class names that may change after an update.

What’s Changed

• More complete CSS coverage - Stable classes now cover the customiser’s controls, forms, pricing details, previews, loading states and other visible elements
• Reliable pop-up styling - Modals, tooltips and popovers have dedicated classes, including elements that render outside the main customiser container
• Predictable state selectors - Selected, open, active, disabled and error states use consistent class names where those states are available
• Embed wrapper controls - Shopify theme embeds and website integration wrappers now expose stable classes for their containers, loading screens, modals and validation messages
• Safer saved CSS - Sign Customiser now handles merchant CSS and customiser setup data more safely when loading embedded, hosted and preview customisers

We’ve refined Sign Customiser’s stencil sign around the details that matter when a sheet reaches production. The live preview now separates the usable design area from the overspray border, measures the true letter height of every line and keeps the finished sheet size visible. Pricing and eligible production files use those same bordered dimensions.

What’s Changed

• One clear border allowance - Rectangular stencil sheets use the configured overspray border as the single source of padding around the design. A dashed guide marks where the usable design area ends, and the included demo uses a 1 inch border for 1 to 2 inch letters, 2 inches for 3 to 7 inch letters and 3 inches for 8 to 12 inch letters.
• Letter height means the letters themselves - Sizing follows the visible glyph height instead of counting the full line box or the gap between lines. Every text line gets its own on-canvas height guide, so a 3 inch choice produces 3 inch letters on each line.
• Separate finished-sheet measurements - Overall width and height rails sit outside the sheet and include the full border. Customers can see the size you will manufacture without confusing it with the letter-height guides inside the design.
• One size from quote to cut - The live price, product image, order details and manufacturer handoff agree on the bordered sheet size. Compatible text-only designs carry the same physical dimensions into calibrated SVG and optional DXF files.
• A complete demo in one click - Merchants can install a ready-made stencil customiser with 12 letter-height tiers, tiered borders, three Mylar materials, four stencil-safe fonts, exact-height controls and production file settings already configured.

One customiser can now serve shoppers in multiple languages. Add translations yourself or use AI to prepare a first draft, check each language in the live preview, and publish it when you are happy with the result.

Use AI to prepare first draft. Choose the source and target language and Sign Customiser fills the draft catalogue for you. The result stays private until you review it in the live customiser preview and choose to publish.

This is not a Shopify-only feature. The same published languages work across Universal customiser links, iframe embeds and supported custom element integrations. Universal sites can select a language explicitly, follow the site’s chosen language or use the shopper’s browser language before falling back to the customiser default. See how language selection works on Shopify and Universal, including the language_code URL parameter and language-code custom element attribute.

What’s Changed

• One customiser for every language - Add and manage languages without duplicating customisers or swapping template IDs for each market.
• Automatic language matching across Shopify and Universal - Shopify customisers follow the shopper’s active storefront language. Universal customiser links and embeds can use an explicit language, the site’s chosen language or the shopper’s browser language, with a safe fallback to your default.
• Manual or AI-assisted translation - Start with blank fields or ask AI to prepare a first draft. AI translations stay in draft until you review and publish them, and your manual edits remain protected.
• Private drafts and live previews - Work on a translation without changing the public customiser, then preview the real shopping experience before publishing.
• Full customiser interface coverage - Translate buttons, option names, choice labels, custom forms, warnings, review details, and other text within the customer customiser.
• Clear missing and stale translation notices - See what still needs attention and find wording that may need another look after you change the source language.
• Translated order details stay readable - Sign Customiser keeps the labels and choices the shopper saw with the product and order, while preserving the underlying details used for pricing and production.

Advanced customisers now make the difference between automatic and manual sizing clear. Signs follow the customer’s text by default. A chosen manual size remains in place as they edit the design, and the familiar size lock lets them return to content-driven sizing with one click.

What’s Changed

• One-click return to automatic width - Clicking the locked size control resizes the sign to its current content and keeps following later text or font changes
• Stable manual sizing - Adjusting the slider, width or height keeps the padlock open and preserves that size while the customer changes text, fonts or orientation
• Explicit locking - The padlock closes only when the customer clicks it
• Familiar placement - The size control stays beside the width and height inputs, where customers already expect to find it
• Frame Fit stays familiar - Frame Fit customisers keep their existing size lock because it still represents the fixed box customers expect

Every Sign Customiser customiser can now use either mobile layout. Choose Stacked all at once when you want shoppers to scroll through their options, or One Selection at a Time when you want to guide them through each choice with a focused step-by-step flow.

What’s Changed

• Two layouts for every customiser - Choose either mobile view from Mobile View in your customiser settings. The choice is no longer limited to older customisers.
• Stacked all at once - Shoppers can browse and compare every available choice in one scrolling page.
• One Selection at a Time - Shoppers move through a simpler step-by-step flow, with pill navigation to revisit any choice.
• Clearer option icons - Colour choices now use the colour icon, and the pill icons have been aligned more cleanly within their circular buttons.

Sign Customiser now opens custom-size inputs in the measurement system that matches a shopper’s active Shopify market. Shoppers in imperial markets see inches first, while shoppers in metric markets see centimetres first, making it easier to enter the dimensions they know.

What’s Changed

• Local units appear first - Customisers that offer both units now start with inches for imperial markets and centimetres for metric markets.
• No merchant setup required - Sign Customiser uses the shopper’s active Shopify market automatically, including when a shopper changes country on the storefront.
• Both units stay available - Shoppers can still switch units whenever they need to, and customisers set to a single unit continue to use that unit.
• Existing size details stay consistent - Wherever dimensions already display both inches and centimetres, such as reviews and visualiser measurements, they continue to show both.

Sign Customiser now has a dedicated stencil signs page and live demo. Customers choose letter height first, then see the finished bordered sheet size and price update as their text changes.

What’s Changed

• Letter height comes first. Customers choose a preset tier, then see the finished sheet update as they edit the text. When enabled, an Exact letter height input sits alongside the tiers.
• Finished sheet size stays visible. The dimensions include the border around the cut lettering, alongside the live price.
• Eligible text designs get cut-ready SVGs. Eligible text-only designs emit physically calibrated flat-path SVGs. Uploaded or masked artwork may use fallback SVG geometry.
• DXF is optional. It is merchant-enabled, available only for eligible flat text-only stencil SVGs. Conversion can fail, so an order may have no DXF.
• Starter stencil fonts keep their bridges. Fonts not marked stencil-safe show a warning so they can be reviewed before production.

Sign Customiser now supports Braille Signs, a new plate-style product type for merchants selling accessibility and wayfinding signage. Customers type the printed wording, see a live braille row appear underneath it, and the same braille data flows through checkout, product images, manufacturer emails, and production files.

What’s Changed

• New Braille Signs product type - Pick “Braille Signs” in the customiser create flow to start from a complete plate-sign setup with demo sizes, colours, fonts, plate options, and mountings.
• Automatic braille translation - Customer wording is translated into braille automatically as they type, with country-based table defaults and a merchant override when a project needs a specific braille table.
• Honest language tiers - The 14-table support matrix is backed by the same registry used by the app, with included, review-recommended, and not-supported tiers so merchants know when to proof output or route the customer to a quote path.
• Standards-exact dot geometry - Braille dots keep their physical size when the plate changes, with ADA and AU geometry presets feeding the preview, measurements, validation, and fulfilment data.
• Manufacturing-ready vector output - SVG, EPS, and Illustrator-compatible files include the braille dots as exact vector circles, so production teams get usable artwork instead of a visual-only preview.
• Included in current plans - Braille signs are part of the current Sign Customiser plan system with no braille-specific surcharge.

Lightbox signs are almost always made to specific dimensions, so we have made the size follow the artwork. When a customer uploads an image to the face of a lightbox sign, the sign now reshapes itself to match the image’s proportions, scaled to sit within the sign’s size limits. Customers get a result that matches what they uploaded, without working out the right dimensions by hand.

What’s Changed

• Lightbox signs match your uploaded image - When a customer uploads artwork to the face of a lightbox sign, the sign’s custom width and height adopt the image’s proportions automatically, scaled to fit within the allowed size range. The size selection switches to Custom for them, so what they see on screen is what gets made.
• Custom sizes by default for new lightbox signs - New lightbox customisers start in custom-size mode with no preset size tiers, matching how lightbox signs are really quoted and produced. You stay in control: your existing customisers are left exactly as they are, and you can still offer preset sizes whenever you want them.
• Flexible artwork cropping - Customers can crop an uploaded image to any shape rather than being forced into a fixed square, which makes it far easier to fit logos and artwork to bespoke sign dimensions.
• Uploads stay put when resizing - Artwork a customer has already added is kept when the sign size changes, so adjusting the dimensions no longer clears the image they uploaded.