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• Go to Access Token Debugger page, click on Debug button to get the permanent token in which the expires and data access expires will be Never.
• Copy the access token.

 To check the access token, go to Graph API Explorer (https://developers.facebook.com/tools/explorer/)

• Fill the token on Access Token field.
• Then click Submit.
• The proper access token will display as in the image.

Image Added

 Back to the Magento configuration page, paste the link to the Permanent Page Access Token field.

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