Hello everyone,
I’m facing a blocking issue with Instagram advanced permissions and I’ve already exhausted all standard setup steps, so I’d really appreciate guidance from anyone who has seen this before.
Context:
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Instagram account is Business
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Instagram is correctly connected to a Facebook Page
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Facebook account is Admin and Owner
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Business Manager is active and healthy
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Two-factor authentication enabled
ManyChat is already connected and working for:
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DM keyword automations
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Comment → DM
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Regular Instagram messaging
The problem:
When I try to enable “Welcome message for new followers”, ManyChat asks me to update permissions.
At that step, Meta always returns the error:
“You can’t log in with this Instagram account.
Try using a Facebook account that you know is connected to this Instagram account.”
Important details:
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The error appears consistently and blocks the advanced permissions flow
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There is no alternative login option or explanation from Meta
What I already tried:
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Reconnecting Instagram from ManyChat
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Removing and re-authorizing ManyChat in Facebook Apps
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Verifying Business Manager and Page ownership
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Checking that Instagram exists in only one Business Manager
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Different browsers and networks
At this point, it seems like an internal Meta permission / token flag related specifically to Instagram Messaging advanced permissions.
Has anyone experienced this and managed to resolve it?
Is this something that requires a manual token reset or permission refresh from Meta / ManyChat staff?
Thanks in advance for any help or direction.