Register as a developer, you can register at the following website. https://developers.facebook.com/async/registration+
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Facebook permissions: | Instagram permissions: |
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pages_messaging | instagram_content_publish |
Business Asset User Profile Access | instagram_manage_insights |
pages_manage_metadata | pages_messaging |
public_profile | instagram_basic |
Page Public Metadata Access | pages_show_list |
pages_read_engagement | pages_showmanage_listmetadata |
pages_show_list | instagram_manage_messages |
pages_read_engagement | |
Business asset user profile access |
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