Every widget has an embed / share step.
Share link
Opens the widget as a full page on Sharity. No HTML required. Good for email and social.
Embed code
An iframe you paste on your site. Height and width are in the snippet; you can adjust height if your layout clips the form.
Header script (maps + lists)
If a Donation List on one page should open dedications on an Interactive Experience on another page, add the header script from the embed instructions once on the map page. That lets dedication links in the URL open the right hotspot.
If both widgets are on the same page, the embed snippet can include the bridge script automatically — follow the help text under the snippet for your widget type.
After you change a widget, you usually do not need to recopy the iframe URL (it points at the same widget). Recopy if you switched from share-link-only to a new widget id.