If you use Employee Central, you can enable General Display Name via Company System & Logo Settings, and then in Manage Data > Name Format, you can set the format of the General Display Name which is used across the system, including the search results when searching for employees in the global header.
For example, if you have a Preferred Name field in Employee Central, you can set it so that the format is Preferred First Name + Last Name, with an alternative of the regular First Name field so that the regular first name is used it the Preferred First Name is not maintained.
If this is what your question is regarding, then you should be able to find plenty of information from SAP using the search term 'General Display Name'.
Edit: I've just seen that, even without General Display Name enabled, there is another setting on Company System & Logo Settings "Enable the name format selected in Configure People Profile to apply globally". Then within Configure People Profile > General Settings, there is the option Choose Name Format where you can select the relevant format from Manage Data > Name Format.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.