Restrict acf-json Sync for Specific Field Groups in Advanced Custom Fields

 * prevent acf-json sync on specific fields 
add_filter('acf/get_field_group', 'wd_restrict_json_sync_field_groups', 20);
function wd_restrict_json_sync_field_groups($group) {

	if ( $group['key'] == 'INSERT FIELD GROUP ID' ) {
		$group['private'] = 1;
	return $group;

About Matt Whiteley

Matt has been building bespoke WordPress websites for over 10 years specializing in the Genesis Framework. He integrates Advanced Custom Fields heavily in all builds, especially with the new Gutenberg Block Editor, allowing clients to easily modify all aspects of the their website with ease.

He works with a wide variety of small businesses and agencies across the country providing development services as well as hosting and maintenance. When he isn't coding he enjoys spending time with his wife and two children, golfing and playing poker.