Deceptive behavior covers a wide range: fake UI elements, impersonation, misleading functionality claims, and dark patterns. Google Play takes this seriously and rejections under this policy can escalate to account-level action if not handled properly. Here's how to address it.
What Apple said
“Your app has been found to violate the Deceptive Behavior policy. Your app contains elements that deceive users, including interface elements designed to mislead users into unintended actions or misrepresentation of the app's core functionality.”
Google's deceptive behavior policy catches apps that trick users — fake close buttons that open ads, subscription flows designed to confuse, functionality that's completely different from what the listing promises, or UI that mimics system dialogs. Even if it was unintentional, these patterns will get you rejected.
While you're at it — Apple also requires these pages for every app.
Fix this rejection, then make sure you're covered on the compliance side too. Apple requires every app to link to a hosted Privacy Policy, Terms of Service, Support page, and Data Deletion page. No link means another rejection — just for a different reason.