Title: Multisite Network Activation Issue
Last modified: August 22, 2016

---

# Multisite Network Activation Issue

 *  [nightbook](https://wordpress.org/support/users/nightbook/)
 * (@nightbook)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/multisite-network-activation-issue/)
 * Hello,
 * Activating on Multisite I get the following error messages;
 * > The following plugins might cause (open graph) issues with Yoast WordPress 
   > SEO:
 * > The plugin generated 618 characters of unexpected output during activation.
   > If you notice “headers already sent” messages, problems with syndication feeds
   > or other issues, try deactivating or removing this plugin.
 * Is this to be expected?
    Thanks
 * [https://wordpress.org/plugins/wordpress-seo/](https://wordpress.org/plugins/wordpress-seo/)

 The topic ‘Multisite Network Activation Issue’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908)
 * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/)

## Tags

 * [multisite](https://wordpress.org/support/topic-tag/multisite/)

 * 0 replies
 * 1 participant
 * Last reply from: [nightbook](https://wordpress.org/support/users/nightbook/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/multisite-network-activation-issue/)
 * Status: not resolved