A client of mine wants to switch their single site installation and make it a multi-site one so that they can run an online store on a sub-domain while keeping their existing site on the primary domain.

I've Googled all morning but all I can find is ways to import a single site into an already existing multi-site installation whereas what I need to do is convert a single to a multi.

Is this possible?

1 Answer 1


Have you checked out Create A Network on the codex? Essentially:

  1. Add define( 'WP_ALLOW_MULTISITE', true ); to your wp-config.php
  2. Access Tools > Network Setup from the admin menu & follow the instructions.

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  • Would this not delete any existing content in the primary site? Oct 2, 2013 at 8:29
  • No. But regardless, make a backup! Oct 2, 2013 at 9:39

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