Limit for full-page extensions in customer accounts

API

A full-page extension target (customer-account.page.render or customer-account.order.page.render) can no longer coexist with any other targets in the same extension. This change improves performance and provides a better merchant experience in the checkout and accounts editor. If your full-page extension is best used with other extensions in your app, create an editor extension collection to encourage merchants to add all the extensions in the collection.

This change will only impact the deployment of new extensions or new versions of existing extensions. Existing extensions will not be affected until a new version is deployed.