Facebook posts don’t have titles. So the Facebook Fetcher add-on takes the first 10 words of the content as the title of each post. You can change that number in two ways.

For all the Facebook campaigns.

Facebook Fetcher has the wpefbf_post_title_words filter. Add this code to the functions.php file of your child theme, or with a code snippets plugin, and change 15 for the number of words you want:

add_filter( 'wpefbf_post_title_words', function( $words ) {
	return 15;
} );

For each campaign.

The titles that Facebook Fetcher creates also work with the Custom Title feature of the Professional add-on:

1. Go to WPeMatico → Settings → Professional and turn on the Custom Title feature.
2. In the campaign, use the Custom Title Options box to cut the title at a number of words or characters, add text before or after it, add a counter and more.

• How do Custom Titles work?
• Setup Facebook Fetcher