Please, provide the following information after you have set the AD application:
Custom Esignature integrates with your Microsoft 365 to help you automatically create and manage email signatures for the entire organization. Create and roll out branded email signatures with domain-wide Microsoft Add-in without having to neither set up email routing nor connect to a third-party server.
Custom Esignature connects to Microsoft 365 Active Directory with the help of Graph API which allows creating and updating email signatures based on the employee's information in Active Directory. The email signatures in Outlook are then managed by Microsoft Add-in that is centrally installed by the admin for the entire domain or specific group of employees.
The first step is to set up an integration with Microsoft 365 Active Directory. Please, follow the instructions below: