If your Facebook Group posts are failing and you're getting error #200 on your failed posts, then this is due to an update by Facebook from 2018.
In order to proceed with posting, you (as Group admin) must add the StoryChief app to the Group settings. This is a one-time process that will allow StoryChief to post to a Facebook Group on your behalf.
Take the steps below to add the app to your Facebook Group.
Add the StoryChief app to your Group settings
Step 1. On Facebook, navigate to the Facebook Group you want to publish with StoryChief.
Step 2. Scroll down and click "Settings" on the bottom left.
Step 3. Scroll down to Apps on the bottom right and click the pencil "edit" icon.
Step 4. Click the blue "Add Apps" button on the popup that appears.
Step 5. Type StoryChief in the search field and select it.
Step 6. Click the "Add" button
🎉 You're all set!
Check out the next steps below for more in-depth guides or follow-up actions.