Facebook Debugger - Update image & text posting to Facebook
Facebook will memorize whatever information you originally post to Facebook. If you wish to update the information Facebook posts, follow the steps below:
Step 1: Make sure the Facebook sharing fields on your Layout tab are updated with the proper text and graphic you wish to post to Facebook
Step 2: From the Campaigns screen, click View to launch your form
Step 3: Copy your Campaign's URLStep 4: Click this link to launch the debugger: https://developers.facebook.com/tools/debug/og/object/
Step 5: Paste your Campaign's URL into the debugger and click the 'Show existing Scrape information' button then click 'Fetch new scrape information' then click 'Show existing scrape information' one more time.
Step 6: Scroll down the page and you should see the updated text and graphic that will post to Facebook
That should do it!
If for some reason it doesn't update properly, it could be because you have additional sharing fields on your layout tab that aren't updated with the desired information. Or, you might want to upload a different sized graphic. The idea size is 200x200.