Navigation system with user generated content mechanism and method of operation thereof

A method of operation of a navigation system comprising:

• receiving a change request with proposed change for an item;
• verifying a validity of the change request matching a change candidate entry in a change candidate list based on a confidence level meeting or exceeding a change threshold with a control unit, verifying the validity including calculating the confidence level based on a time interval between the change request and a change candidate entry meeting or being below a time interval threshold;
• and
• updating a target element of the item based on the validity of the proposed change for avoiding an incorrect update to the target element for displaying on a device.

A navigation system comprising:

• a controller interface for receiving a change request with a proposed change for an item;
• a control unit, coupled to the controller interface, for verifying the change request based on a confidence level of the change request meeting or exceeding a change threshold and calculate the confidence level based on a time interval between the change request and a change candidate entry meeting or being below a time interval threshold;
• and
• an update item module, coupled to the controller interface, for updating a target element of the item based on the validity of the proposed change for avoiding an incorrect update to the target element.