I did master page changes to SharePoint Online using SharePoint Designer for one site collection.

How can I implement it for all site collection and newly created site collection , without modifying each site collection master page globally.

  • Which one you have customized? .master or .html? Commented Dec 3, 2015 at 8:34

1 Answer 1


You can't set it globally but what you can

  1. Download your master page
  2. Download all design files like css & js

Now upload everything in your new site collection and also publish.

PS: as your environment is SPO, you can utilize Designer Manager.

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