I’m unable to reconnect my Instagram Business Account (@bencorde) to ManyChat because the Meta authorization page only shows the Instagram login, not the Facebook login required for the new API.
Every time I click “Update your Instagram permissions to say hi to new followers,” it sends me to Meta’s “Authorization Request” screen → I log in with Instagram → and get this message:
“You can’t log in with this Instagram account. Try using a Facebook account that you know is connected with this Instagram account.”
I’ve tried everything — clearing cache, different browsers, devices, removing/re-adding ManyChat in Business Integrations, confirming admin access, and linking my Page + IG correctly.
The issue persists because my account is still connected via the old Instagram OAuth API, which Meta deprecated in 2024.
ManyChat chatbot confirmed the old API connection (ticket #399766) and said the issue needs manual migration to the Unified Instagram Onboarding Flow — but I haven’t received a response.
I need assistance from Meta or ManyChat to:
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Migrate my connection to the new API.
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Restore the “Log in with Facebook” option on Meta’s authorization screen.
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Reactivate my automations (“Say Hi to New Followers” and others).
This issue is blocking essential business automations and appears to be affecting many users still stuck on the old connection.
Anyone else has experienced this?
