Sharepoint Upload Custom.master
Upload Custom.master in to Master pages and page layouts (Under Web Designer Galleries )
1.Open SPO–>Click on Site Settings
2.Click on Master pages and page layouts (under Web Designer Galleries)
3.Upload Custom.master
4. Publish Major version
5.Set your new master page as default to site
6.Site Settings –>Master page (Under Look and Feel)
7.under Site Master Page –>Select the drop down and select Custom
Click Ok
Upload Custom.master in to Master pages and page layouts (Under Web Designer Galleries )
1.Open SPO–>Click on Site Settings
2.Click on Master pages and page layouts (under Web Designer Galleries)
3.Upload Custom.master
4. Publish Major version
5.Set your new master page as default to site
6.Site Settings –>Master page (Under Look and Feel)
7.under Site Master Page –>Select the drop down and select Custom
Click Ok
