Type your email, username and password, and click Next.Switch Background App Refresh on to green.Open Settings and tap Outlook > Contacts.You can sync Outlook contacts on iPhone using Settings, iTunes, iCloud, via email, by importing as vCards, or through Exchange. This isn’t always the case though, especially where there are incorrect permission settings or general software issues like bugs that stop Outlook from syncing with your phone. IPhones usually do a good job of syncing and updating contacts across apps and devices. You can check this by going to Settings > Apps (Applications) > Permissions and toggle the Contacts switch to on to green. Note: Make sure Gmail can access your contacts and calendar. If a popup requesting Remote security administration appears, tap OK and then complete your sign-in on the next page. It’ll start validating server settings on your Android device.

Note: Don’t select Outlook, Hotmail and Live as these services use IMAP and POP, which are sync protocols that can’t sync contacts or calendar.