Outlook ribbon customization

New Contributor

Hi,

I want to customize the Outlook ribbon by adding a button (with new group) at Home(Mail) ribbon and deploy it to few hundred machines. I created the olkexplorer.officeUI file and copy it to some of the testing machines (work perfectly). However, some peoples have their own customized ribbon. If deploy the olkexplorer.officeUI file will overwrite their existing customized ribbon.

Is there any other way to deploy the button at Home(Mail) ribbon without overwrite their own customized ribbon, e.g. registry, GPO?

 

We are using M365 Apps version 2202

Thanks.

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