Detect an reactivate an inactive plugin

Uses the Action Scheduler within WooCommerce and some other plugins to check on a plugin activation regularly and reactivate when necessary.

// Scheduler
add_action( 'admin_notices', function() {

	// Require Action Scheduler
	if( ! function_exists( 'as_has_scheduled_action' ) ) {
				<div class="notice notice-warning is-dismissible">
			', 'Plugin reactivator -- Missing Action Scheduler.'

	// Check Preexistence
	$hook = 'ccom_plugin_reactivator';
	if( ! as_has_scheduled_action( $hook ) ) {

		// Set New Schedule
			current_time( 'timestamp', 1 ),


} );

// Runner
add_action( 'ccom_plugin_reactivator', function() {

	// Setting
	$plugin_file = 'klaviyo/klaviyo.php';

	// Check Plugin Status
	if( is_plugin_active( $plugin_file ) ) {

	// Activate It
	activate_plugin( $plugin_file, '', false, true );

} );

Instructions for Detect an reactivate an inactive plugin

  1. Log into a staging or locally hosted clone of your site.
  2. Install and activate Code Snippets plugin.
  3. WP Admin > Snippets > Add New
  4. Copy and paste the code from the section above.
  5. Check to ensure formatting came over properly.
  6. Customize the code as desired.
  7. Add a meaningful title.
  8. Select whether to run on front-end or back-end (or both).
  9. Click “Save and Activate”.
  10. Test your site to ensure it works.
  11. Disable if any problems, or recover.
  12. Repeat for live environment.

Need help modifying Detect an reactivate an inactive plugin?

Contact me. I can help with fitting projects or refer to my partner.


All code snippets are licensed GPLv2 (or later) matching WordPress licensing.

Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Disclaimer of warranty

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