Check the simple causes first

Open the published website in a normal browser window. Confirm that you installed the snippet for the intended widget and that it appears once. Review package status, widget state, page rules, device visibility, and any configured display delay.

Inspect browser errors

Use the browser's Network and Console panels to look for blocked requests, domain restrictions, security-policy errors, or failed resources. An error inside the preview may differ from a storefront installation issue. Do not grant access to local devices to make a production widget work.

Escalate with useful evidence

Send the public page URL, widget reference, browser, approximate time, and a redacted error. Mention whether the dashboard preview works. Do not send a full network archive without checking it for cookies, tokens, and personal data.