How to Fix "Account Not Eligible to Use Twitter" on Instagram

Are you seeing the error "At this time, your account is not eligible to use Twitter" while trying to link your accounts or share posts from Instagram? In January 2026, following the iOS 26.2 update and recent API changes between Meta and X (formerly Twitter), this error is frequently triggered by a "Handshake Timeout" or a mismatch in Account Center permissions. Whether you're on an iPhone 17 or Android, this updated tutorial will show you how to bypass the eligibility block, fix the "Attestation Denied" bug, and resync your social cross-posting settings. In this video, we cover: The 2026 API Handshake Fix: Why the integration between Instagram and X is failing after the latest security patches and how to force a fresh connection. Account Center Permissions: How to navigate to Settings - Account Center Sharing Across Profiles to manually toggle the Twitter/X permissions that are currently "grayed out" for many users. The "Age Verification" Lock: Why accounts set under 18 in iOS 26 are now being blocked from third-party integrations for "Safety and Privacy" and how to verify your birthdate to unlock the feature. Clearing the Login Token: A step-by-step on how to log out of both apps, clear your mobile browser cache (Safari/Chrome), and perform a "Clean Link" to stop the eligibility error. Professional Account Switch: Why switching your Instagram to a Creator or Business account is the #1 workaround for the "Not Eligible" bug in 2026. VPN & Region Blocks: How the new 2026 regional restrictions on X can interfere with Instagram's ability to verify your account eligibility.