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“Briefly unavailable for scheduled maintenance” message appears when you try to open your website while manually updating Website’s WordPress version/Theme/Plugin.
During the maintenance process, WordPress creates a new file called .maintenance in the root directory of your website. Due to this file, the “Briefly unavailable for scheduled maintenance” message comes on the dashboard.
This is not a big issue because this message is self destructing in nature and after updating the WordPress version/Theme/Plugin, .maintenance file is automatically removed from the root directory.
Generally it takes 5 – 30 minutes to get the file deleted automatically. As far as I know, WordPress officially declares it takes maximum 30 minutes to disappear the “Briefly unavailable for scheduled maintenance” message.
Here, you have two options, either you sit back and relax for 15 minutes or just delete the ‘.maintenance’ file from the root directory.
To delete the .maintenance file, you can use FTP connection or cPanel.
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