bradmkjr

<?php
/**
 * Plugin Name: My Plugin
 * Plugin Description: Settings API Demo
 */

add_action( 'admin_menu', 'my_admin_menu' );
function my_admin_menu() {
	add_options_page( 'My Plugin', 'My Plugin', 'manage_options', 'my-plugin', 'my_options_page' );
}

bradmkjr

<?php
/*** Require  ACF plugin ***/

//Check if ACf exists on plugin activation
register_activation_hook( __FILE__, 'acf_plugin_activation' );
function acf_plugin_activation(){

    // Require ACF or ACF Pro plugin
    if ( ( !is_plugin_active( 'advanced-custom-fields/acf.php' ) && !is_plugin_active( 'advanced-custom-fields-pro/acf.php' ) ) and current_user_can( 'activate_plugins' ) ) {
        // Stop activation redirect and show error