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Custom master pages are currently not supported for "modern" pages. You can find supported/unsupported customizations in below documentations: Customizing "modern" site pages Customizing "modern" team sites Branding your SharePoint site There is no SharePoint out of the box option to hide office 365 ribbon at the top. ...


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Once you delete a group, it will be retained for 30 days by default. This 30-day period is considered a soft-delete because you can still restore the group. After 30 days, the group and its associated contents are permanently deleted and cannot be restored. Microsoft documentations: Restore a deleted Microsoft 365 group Restore a deleted Microsoft 365 group ...


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It is not possible to show the dialog/pop up on button click using out of the box functionality. If you are using text web part then you can create a hyperlink which will open a video/link in new browser tab Or you can use button web part to show button & open link in new tab (This is what you can achieve using out of the box web parts & not dialog/...


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