If Size Chart isn't showing on a product, it's almost always one of these: no chart assigned, the chart isn't published, the app embed is off, or a change wasn't saved. The same checks apply to Help us find your size / Your size on Starter and above — those need a published chart assigned too. On Free, Sizing assist is hidden; Size Chart next to Size still shows.
When it is working, shoppers see a Size Chart text link on the product page and can open the table without a try-on.
1. Is a chart assigned to this product?
Size charts are reusable. If a product has no chart assigned, nothing shows next to Size, nothing shows in try-on, and Estimate my size has nothing to match against.
In Shopify admin, go to Apps → AI Frame – Virtual Try-On, then click Size Chart.
Look at Existing size charts: the Assigned products column shows which products each chart covers.
If your product isn't covered, open the right chart and assign it — by products, categories, Tags, Vendor, or Collections — or create / import a new chart. Confirm tags, vendor, or collections actually match the product. At your published cap, Add new chart is disabled (Free 10 / Starter 30 / Growth 100 / Advanced unlimited). You can still keep drafts.
See How to Set Up a Size Chart for Your Products and How to Import Size Charts from Your Store or a Photo.
2. Is the chart published?
A chart marked Unpublished is not visible to shoppers, even when it's assigned. Open the chart and publish it. Imported store/photo charts start as drafts on purpose.
3. Is the app embed on?
Size Chart next to the size picker is placed by the app embed (or the optional Size Chart link block). Sizing assist is placed the same way on Starter+. If the embed is off, those will not appear even with a published chart. Turn the embed on, then Save. See Add AI Frame to your theme.
Exclude product types never hides Size Chart or Sizing assist — it only hides the Try On pill.
4. Did you remember to save?
After editing a chart or its product assignments, save. If you navigated away first, the change was not stored.
5. Give it a refresh
After saving, refresh the product page (and clear your cache app, if you use one).
Still not showing?
If a chart is assigned, published and saved, the embed is on, and it's still missing, send us a message with the product you're testing.