Why do some contacts disappear in Outlook after exporting them?

Last Revised: 2015-11-20 13:38:47
As Outlook has a feature to merge duplicate contacts automatically, some contacts may be merged into one and appear like one is missing.

Related FAQ
How to set default resolution while downloading YouTube videos by dragging URL and pasting URL method.
How to install the extension for Safari,Firefox and Chrome.
How to clone Entire Disk.