All embedded apps submitted for app review are required to adopt session tokens
Tools
Effective March 08, 2021
Action required
Session token-based authentication is now required for all embedded apps submitted for app reviews. This update helps mitigate the risk of embedded apps failing due to third-party cookie browser restrictions. With session token-based authentication, embedded apps no longer rely on cookies to verify identity.
Learn more about how to authenticate your app using session tokens on Shopify.dev.