Oppo
Name Format for Call History auf Oppo
Call history on Oppo phones can display contact names in a different order than the contacts app itself. This happens because ColorOS treats the call log as a separate display context with its own name format setting, independent from how contacts are sorted or saved.
The setting matters most if you import contacts from different accounts or regions, since some sources save names as Lastname, Firstname while others use Firstname Lastname. Without a fixed format, the call log can look inconsistent even though every contact entry is correct.
Where the setting lives
Open Phone ➔ Open the Menu ➔ Settings ➔ Display options ➔ Name format. Choose between First name first and Last name first to set how every entry in the call history is shown from that point on.
This choice only changes the display order in the call log. It does not rename contacts or change how they appear in the contacts app or in messages, so you may need to check other apps separately if the order looks off there too.
If names still look mixed after changing the format, some contacts likely have their first and last name stored in the wrong fields at the source, which the display setting cannot correct.