Hello,

I have this code in my site to assign paid posts into the sponsored post category but how can I achieve the opposite

– Remove or unset paid sticky posts from the (Sponsored Posts) content_type category when the paid post expires.

 /**
 * Assign (Sponsored Post) category to BuddyBlog pay per post articles on checkout.
 */
add_action( 'bblpro_ppp_post_purchase_completed', function( $post_id ) {
	$post_type = get_post_type( $post_id );
	if ( 'post' !== $post_type ) {
		return;
	}
	// Get taxonomy term.
	$newterm = get_term_by( 'name', 'Sponsored Posts', 'content_type' );
	if ( ! $newterm ) {
		return;
	}
	// Assign term to post.
	wp_set_post_terms( $post_id, $newterm->term_id, 'content_type', true );
} ); 

Note (content_type) is a custom taxonomy

now how can I automatically remove sticky posts from the Sponsored Post on expiration

Thanks