Hi,

In odoo 14 there is a module named "microsoft_outlook" which is located in "addons/microsoft_outlook". Please install this module.

Hope it helps

Hi, 
The error "Invalid field 'microsoft_outlook_client_identifier' on model 'res.config.settings'" typically occurs when Odoo cannot find the field declared in the model. The 'microsoft_outlook_client_identifier' field is usually present in microsoft_outlook module. Make sure you mention this module in your manifest file:

{

    'depends': [

        'microsoft_outlook',

        # other dependencies...

    ],

}

Regards,
NIZAMUDHEEN MJ ​
Accurates