How to sync business calendar back to google

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http://androidforums.com – Hi I am newish to smart phones/android/google/new technology in general! I have eventually managed to sync my google calendar to my business calendar on my galaxy ace but can not work out how to get it to work in the other direction (ie events added on my phone business calendar appearing in the google calendar). I have read the other threads that seem to be able simelar problems but can't work it out. Thanks for your help (General)