“Cannot synchronize with the Outlook profile you are using, because a different profile was previously setup or the profile is password protected. Please open Outlook using the appropriate profile. Support Code: 8503001f
Solution Primary Symptom: You receive the error “Cannot synchronize with the Outlook profile you are using, because a different profile was previously set up or the profile is password-protected. Please open Outlook using the appropriate profile.”
Other Symptoms this solution frequently resolves: We have heard of instances in which ActiveSync only partially or sporadically sync’s with the mobile device. e.g. Calendar and eMail sync but Contacts do not. This solution has been known to resolve this issue as well.
Resolution: Recreate ActiveSync Profile with mobile device
- On Activesync window on PC, make sure your PDA/Phone is not connected to the USB cable or in the cradle.
- Go to File | Mobile Device
- Select the devices profile sync-name (is the same name as your device)
- Go to File | Delete Partnership
Now your current sync partnership is terminated so when you connect the USB cable to your PDA or dock it, the Activesync will request a new partnership and then you can reconfigure the activesync settings to sync whatever data you want between PC/Server and PDA.
Note: If you use Outlook with an Exchange Server *and* you have multiple Outlook profiles set up on your PC then you should open Outlook with the desired profile prior to connecting your PDA/Phone and setting up your ActiveSync partnership
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Fransiscus Fendy Novento 
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