Duplicate Customer Issue?

Question

Hi Friends,
I have a customer (xyz) whose account group  is End Customer, now this xyz customer has been replaced by a external customer(abc) . In xyz master data in search field 2 we have added a functionality (MC:"abc"), so what MC: does is gives up the pop up messege saying xyz has a new customer "abc".
Now the requirement is when we create a sales order and add xyz as the end customer, it should automatically gives the pop saying xyz has a new customer "abc" created, it give the sales people option to replace xyz with abc, just like an error messege or a warning messege,here i tried blocking xyz by giving the blocking reason in customer master but when i add xyz as an end customer it doesn't give any warning, i think we can block only sold to/shitp to/payer but not the end customer,
I would appreciate if somebody could advise how to block the end customer or atleast can we do any configuration settings anywhere in IMG so that it gives the warning messege for end customer.
thanks in advance.
Mike D.

Answer 1

 I would recommend for you to do a factory reset on the device to get this issue resolved. Here are the steps below. Be sure to back up your contacts and remove your sd card before performing the reset. 
From the home screen, touch the applications tab (located at the bottom of the display).
Touch Settings.
Touch Privacy.
Touch Factory Data Reset.
Touch Reset Phone.
If presented, enter the current passcode or draw the unlock pattern.
Touch Erase Everything.
Here is a link for additional information on the factory reset http://support.vzw.com/clc/devices/knowledge_base.html?id=33552#preferred