Add tag when Status change from Pending to Subscrived

FluentCRM Tag Adding

add_action('fluentcrm_subscriber_status_to_subscribed', function ($subscriber, $oldStatus) {
	// Only act when moving from pending to subscribed
	if ($oldStatus !== 'pending' || !$subscriber || empty($subscriber->id)) {
		return;
	}

	$tagName = 'Onboarding'; // change as needed

	// Ensure the tag exists (FluentCRM model API)
	if (class_exists('\FluentCrm\App\Models\Tag')) {
		$tag = \FluentCrm\App\Models\Tag::firstOrCreate(
			['title' => $tagName],
			['slug'  => sanitize_title($tagName)]
		);
		if ($tag && !empty($tag->id)) {
			// Attach tag to the subscriber
			$subscriber->attachTags([$tag->id]);
		}
	}
}, 10, 2);