CALIFORNIA _ Some time ago, users of Facebook complained about changes to the contact email on their mobile phones. Facebook finally vowed to clean up the bugs that users have deleted the email contacts from their phones.

Reported by the Telegraph, Wednesday (04/07/2012), it removes the bug contact person email address and replace it with facebook.com. That problem happened to Facebook users who activate the synchronization feature on Android and BlackBerry phones. Even affects, device running beta versions of Windows Phone 8 and Apple’s latest operating system, iOS6.

The problem was recognized by a spokesman for Facebook said in a statement. “For people who use a particular device, a bug has attracted new email address added to their accounts, rather than the primary email address. So the result, facebook.com email addresses drawn (into phone),” explained the spokesman.

Because synchronization is only taking up an existing email address on the site, then automatically e-mail addresses from a third party does not “look”. As a result, the affected mobile phone contacts erased.

“Gravity of changing the personal data on mobile phone users far greater than simply changing the data in the cloud-based services atatu website,” said technology analyst Forrester Senio, Anthony Mullen.

Lessons learned from these events, says Mullen, Facebook should offer simple instructions that the impact of changes in the service it offers, rather than letting the user know it automatically.