How to fix constant reauthentication and permission issues with Facebook & Instagram
Make sure you do not have any warnings or pending verifications from Facebook. You can check that at your Facebook Business Manager account.
Getting permission errors #200 when posting to a Facebook Page, Group, or Instagram account.
Not able to re-authenticate a Facebook Page, Group, or Instagram account.
Constantly being asked to re-authenticate a Facebook Page, Group, or Instagram account.
Go to Facebook Settings > Business Integrations and search for or click on "publer.io".
In the popup, make sure that you've given Publer access to all the required permissions for all the linked Facebook Pages and Instagram accounts that you are facing issues with.

Make sure to click on See all Pages and select the ones that you use on Publer and are having issues with.
Moreover, scroll down till the end and double-check that the Facebook Pages and Instagram accounts are selected in every category.

Once you do that, try to repeat the failing action one more time.
Re-authenticating the social accounts from Publer should be successful.
Go to Facebook Settings > Business Integrations one more time and search for or click on "publer.io".
Select "publer.io" and click on Remove on the top left corner.
You can also click on View and Edit and in the popup, scroll down and click on "Remove".
This will simply make Publer lose access to the specific accounts, so you will have to re-authenticate the access once again. No posts or insights will be lost.

Once you do that, try to repeat the failing action one more time.
Don't forget to re-authenticate the existing Facebook Pages, Groups, and Instagram accounts.
If you are:
Getting permission errors #200 when posting to a Facebook Page, Group, or Instagram account.
Not able to re-authenticate a Facebook Page, Group, or Instagram account.
Constantly being asked to re-authenticate a Facebook Page, Group, or Instagram account.
1. Try the following:
Go to Facebook Settings > Business Integrations and search for or click on "publer.io".
In the popup, make sure that you've given Publer access to all the required permissions for all the linked Facebook Pages and Instagram accounts that you are facing issues with.

Make sure to click on See all Pages and select the ones that you use on Publer and are having issues with.
Moreover, scroll down till the end and double-check that the Facebook Pages and Instagram accounts are selected in every category.

Once you do that, try to repeat the failing action one more time.
Re-authenticating the social accounts from Publer should be successful.
2. If that does not work, then simply
Go to Facebook Settings > Business Integrations one more time and search for or click on "publer.io".
Select "publer.io" and click on Remove on the top left corner.
You can also click on View and Edit and in the popup, scroll down and click on "Remove".
This will simply make Publer lose access to the specific accounts, so you will have to re-authenticate the access once again. No posts or insights will be lost.

Once you do that, try to repeat the failing action one more time.
Don't forget to re-authenticate the existing Facebook Pages, Groups, and Instagram accounts.
Updated on: 01/02/2022
Thank you!